Pre Net 2015 Engineering By Taleem Tutor

  • NET
Reviewed by Editorial Team
The ProProfs editorial team is comprised of experienced subject matter experts. They've collectively created over 10,000 quizzes and lessons, serving over 100 million users. Our team includes in-house content moderators and subject matter experts, as well as a global network of rigorously trained contributors. All adhere to our comprehensive editorial guidelines, ensuring the delivery of high-quality content.
Learn about Our Editorial Process
| By Ejazmoaz
E
Ejazmoaz
Community Contributor
Quizzes Created: 5 | Total Attempts: 2,261
| Attempts: 456 | Questions: 199
Please wait...
Question 1 / 200
0 %
0/100
Score 0/100
1. Which word does not belong to the group in each of the following questions?

Explanation

All the other words (ear, lip, nose) are body parts that are located on the face, while chest is a body part located on the torso.

Submit
Please wait...
About This Quiz
Pre Net 2015 Engineering By Taleem Tutor - Quiz

READ IT BEFORE STARTING TEST:
1. Each Question Carries 1 Marks.
2. There are Total 200 Questions.
3. No Negtive Marking
4. You can Change Your Answer If you Want to.
5. Dont Forget To Share You Result in Our Group After the Test For Suggestions.
6. For Any Other Query,... see moreContact @ Facebook. Com/TaleemTutor
7. Join Us @ Facebook. Com/groups/NustEntryTest2015 see less

We’ll put your name on your report, certificate, and leaderboard.
2. If U is a variable , V is a constant then d over d subscript u left parenthesis U to the power of V right parenthesis space equals space ?

Explanation

If U is a variable and V is a constant, it means that U can take on different values while V remains constant. This implies that U can change or vary in value, while V stays the same.

Submit
3. If a set A has 3 elements and B has 6 elements such that  A bottom enclose subset of space B space then the number of elements in  A space intersection space B :

Explanation

If set A has 3 elements and set B has 6 elements, the number of elements in the intersection of A and B can be at most 3. This is because the intersection of two sets can never have more elements than the smaller of the two sets. Therefore, the correct answer is 3.

Submit
4.  A x B = B x A iff _______________

Explanation

not-available-via-ai

Submit
5. Identity element in set of rational number w.r.t multiplication is

Explanation

The identity element in the set of rational numbers with respect to multiplication is 1. This means that when any rational number is multiplied by 1, the result is the original number. For example, if we multiply any rational number, say 3/4, by 1, we get 3/4 as the result. Therefore, 1 is the correct answer as it satisfies the definition of an identity element in the set of rational numbers with respect to multiplication.

Submit
6. At which of the following places, motion of simple pendulum becomes slowest:

Explanation

The motion of a simple pendulum becomes slowest at K-2. This is because K-2 is the highest peak in the Karakoram mountain range, located in Pakistan. At higher altitudes, the acceleration due to gravity decreases slightly, which affects the motion of the pendulum. As a result, the pendulum swings slower at K-2 compared to the other given places.

Submit
7. If Z space equals space fraction numerator 2 thin space plus space 7 i space over denominator 2 minus space 8 i end fractionthen space fraction numerator 2 thin space minus space 7 i space over denominator 2 plus space 8 i end fraction=?

Explanation

not-available-via-ai

Submit
8. open square brackets table row 42 1 6 row 28 7 4 row 14 3 2 end table close square brackets=?

Explanation

The given sequence of numbers is 2, -2, 0, 1. The pattern in this sequence is that each number is the result of subtracting the previous number by 2. Starting with 2, subtracting 2 gives -2, subtracting 2 again gives 0, and subtracting 2 once more gives -2. Therefore, the next number in the sequence would be obtained by subtracting 2 from 0, resulting in 0.

Submit
9. If y equals e to the power of ln sin x squared end exponent space t h e n space fraction numerator d y over denominator d x end fraction equals ?

Explanation

not-available-via-ai

Submit
10. Identify Which  do not possess the same kind of meaning as the others:

Explanation

The words "Bondage and Freedom" do not possess the same kind of meaning as the others because they represent opposite concepts. Bondage refers to being restrained or enslaved, while freedom refers to the absence of constraints or restrictions. In contrast, the other word pairs (Honesty and Integrity, Risk and Danger, Pain and Agony) have similar meanings or are closely related concepts.

Submit
11. I f space I f space 2 space sin 45 to the power of 0 plus 1 half cos e c 45 to the power of 0 equals 3 x space space space t h e n space x equals ?

Explanation

not-available-via-ai

Submit
12. A logic gate has four inputs, its possible input combination will be:

Explanation

A logic gate with four inputs can have a total of 16 possible input combinations. This is because each input can have two possible states (either 0 or 1), and with four inputs, we multiply these two possibilities together (2 x 2 x 2 x 2 = 16). Therefore, the correct answer is 16.

Submit
13. Equation of SHM, with amplitude 'a' is given by:

Explanation

The equation of simple harmonic motion (SHM) with amplitude 'a' is given by y = a * sin(ωt), where y is the displacement of the object from its mean position, ω is the angular frequency, and t is the time. This equation represents the periodic motion of an object back and forth about its mean position along a straight line. The sine function ensures that the displacement varies sinusoidally, creating a smooth oscillation. The amplitude 'a' determines the maximum displacement of the object from its mean position.

Submit
14. I f space to the power of n P subscript n minus 3 end subscript equals 604800 space t h e n space n equals ?

Explanation

not-available-via-ai

Submit
15. If A and B are two Matrices then they can be added if

Explanation

Two matrices can be added if they have the same order, meaning they have the same number of rows and columns. This is because addition of matrices requires corresponding elements to be added together, which can only be done if the matrices have the same dimensions. If the matrices have different orders, they cannot be added. Similarly, if the question states that the matrices can have different or same orders, it implies that they can be added regardless of their order.

Submit
16. fraction numerator 7 over denominator x plus 7 end fraction minus fraction numerator 3 over denominator x plus 3 end fractionare the partial fractions of:
Submit
17. Sum of squares of conjugate complex number is?

Explanation

The sum of squares of conjugate complex numbers is always a real number. This is because the conjugate of a complex number is obtained by changing the sign of its imaginary part. When we square a complex number and its conjugate, the imaginary parts cancel each other out, leaving only the real part. Therefore, the sum of squares of conjugate complex numbers will always result in a real number.

Submit
18. The contra positive of  tilde A rightwards arrow B  is

Explanation

not-available-via-ai

Submit
19. n left parenthesis A space union space B right parenthesis space equals space n left parenthesis A right parenthesis space plus space n left parenthesis B right parenthesis space space space space space space space i f

Explanation

not-available-via-ai

Submit
20. Odd one Out:

Explanation

The odd one out in this group is "Squirrel" because it is the only living creature among the options. The rest of the options, "eagle," "cloud," and "plane," are all non-living objects or natural phenomena.

Submit
21. Let an emf of 120 volt of negligible internal resistance connected across a resistance of 1000 ohm. Then the current flowing through the circuit will be: 

Explanation

The current flowing through the circuit can be calculated using Ohm's law, which states that the current (I) is equal to the voltage (V) divided by the resistance (R). In this case, the voltage is 120 volts and the resistance is 1000 ohms. Therefore, the current flowing through the circuit is 0.12 amperes or 120 A.

Submit
22. I f space space space space y space equals space square root of ln space x end root space space space space t h e n space space fraction numerator d y over denominator d x end fraction equals ?

Explanation

not-available-via-ai

Submit
23. An electron is moving along the axis of a solenoid carrying a current which of the following is a correct statement about the electromagnetic force acting on the electron?

Explanation

When an electron moves along the axis of a solenoid carrying a current, the electromagnetic force acting on the electron is perpendicular to its motion. This is because the magnetic field created by the current in the solenoid interacts with the moving charge of the electron, resulting in a force that is perpendicular to both the motion of the electron and the magnetic field.

Submit
24. sin space pi over 9 sin space fraction numerator 2 pi over denominator 9 end fraction sin space pi over 3 sin space fraction numerator 4 pi over denominator 9 end fraction equals?

Explanation

The correct answer is 3/16. This can be determined by multiplying the numerators (3 * 3 = 9) and multiplying the denominators (4 * 5 = 20). Therefore, the fraction 3/4 is equivalent to 9/20, which simplifies to 3/16.

Submit
25. If open parentheses table row 15 row cell 3 x end cell end table close parentheses equals open parentheses table row 15 row cell x plus 3 end cell end table close parentheses then x=?

Explanation

not-available-via-ai

Submit
26. If Z space equals space cos space theta space plus space i space sin theta then 1 over Z = ?

Explanation

not-available-via-ai

Submit
27. Set of cube root of unity is a group w.r.t :

Explanation

The set of cube roots of unity forms a group with respect to the operation of multiplication. This is because the set contains three elements: 1, -0.5 + i√3/2, and -0.5 - i√3/2, which are the solutions to the equation x^3 = 1. These elements satisfy the group axioms of closure, associativity, identity, and inverse. Therefore, the set forms a group under multiplication.

Submit
28. His credulous nature often landed him in touble

Explanation

The phrase "credulous nature" suggests that the person mentioned in the sentence is easily convinced or persuaded. This is further supported by the phrase "landed him in trouble," indicating that his willingness to believe easily has caused problems for him in the past. Therefore, the correct answer is "willing to believe easily."

Submit
29. The sum of three numbers in AP is 15 and their product is 80. The largest number is:

Explanation

Let the three numbers in the arithmetic progression be a-d, a, and a+d. From the given information, we can form two equations: (a-d) + a + (a+d) = 15 and (a-d)(a)(a+d) = 80. Simplifying the first equation, we get 3a = 15, which gives a = 5. Substituting this value into the second equation, we have (5-d)(5)(5+d) = 80. Solving this equation, we find d = 3. Therefore, the largest number is a+d = 5+3 = 8.

Submit
30. If a is a recurring decimal fraction, then 2a-3 is?

Explanation

If a is a recurring decimal fraction, then 2a-3 will also be a recurring decimal fraction. This is because when we multiply a recurring decimal fraction by a constant (in this case 2) and subtract a constant (in this case 3), the resulting decimal will still have repeating patterns. Therefore, the answer is recurring.

Submit
31. The midpoints of a set of parallel chords of an ellipse are:

Explanation

The midpoints of a set of parallel chords of an ellipse are co-linear. This means that if we take any two parallel chords of an ellipse and find their midpoints, these midpoints will lie on the same straight line. This property holds true for all parallel chords of an ellipse, regardless of their orientation or position on the ellipse. Therefore, the correct answer is that the midpoints of a set of parallel chords of an ellipse are co-linear.

Submit
32. When the output power equals to one-half of the input power, efficiency of the transformer becomes:

Explanation

When the output power of a transformer is equal to one-half of the input power, it means that the transformer is operating at 50% efficiency. This indicates that only half of the input power is being successfully converted into useful output power, while the other half is being lost as heat or other forms of energy. Therefore, the efficiency of the transformer in this scenario is 50%.

Submit
33. Which Graph in SHM show K.E of body:

Explanation

not-available-via-ai

Submit
34. Hydrocarbons which burn with smoky flame are called:

Explanation

Aromatic hydrocarbons are compounds that contain a ring of carbon atoms with alternating double bonds. When they burn, they produce a smoky flame due to the incomplete combustion of carbon. Aliphatic hydrocarbons, on the other hand, burn with a clean flame. Alicyclic hydrocarbons are also aliphatic in nature and do not produce a smoky flame when burned. Therefore, the correct answer is Aromatic.

Submit
35. cos to the power of 4 alpha when expressed in terms of trigonometric functions of multiples ofu with exponent as unity equals to;

Explanation

not-available-via-ai

Submit
36. As  temperature of the black body is raised the black body radiations become richer in :

Explanation

As the temperature of a black body is raised, the black body radiations become richer in shorter wavelengths. This is because the temperature increase causes the atoms and molecules in the black body to vibrate at higher frequencies, resulting in the emission of shorter wavelength radiation. This phenomenon is known as thermal radiation, and it follows Planck's law, which states that the intensity of radiation emitted by a black body is directly proportional to the frequency of the radiation. Therefore, as the temperature increases, the intensity of radiation at shorter wavelengths also increases.

Submit
37. If A and B are square matrices of same order, then left parenthesis A plus B right parenthesis squared space equals space A squared space plus B squared space plus space 2 A B if

Explanation

A and B are invertible matrices, then AB is also invertible. This is because if A and B are invertible, it means that they have inverses A^-1 and B^-1 respectively. Therefore, we can say that (AB)^-1 = B^-1 * A^-1, which implies that AB is also invertible.

Submit
38. A maintenance crew is working on a section of a three-lane highway only lane open to traffic. The result is much slower traffic flow. Do cars on a highway behave like:

Explanation

Cars on a highway behave like the molecules of a compressed fluid. This is because when the maintenance crew is working on a section of the highway and only one lane is open to traffic, the cars are forced to compress and occupy a smaller space, similar to how molecules in a compressed fluid are closely packed together. This results in slower traffic flow as the cars have less space to move freely, just like molecules in a compressed fluid experience restricted movement.

Submit
39. To double the total energy for a mass spring system oscillating in SHM, by what factor must the amplitude increase?

Explanation

To double the total energy for a mass spring system oscillating in SHM, the amplitude must increase by a factor of 2. This is because the total energy of a mass spring system in SHM is directly proportional to the square of the amplitude. So, if the amplitude is doubled, the total energy will be quadrupled (2^2 = 4).

Submit
40. Voracious means __________.

Explanation

The word "voracious" is used to describe someone who has an insatiable appetite or desire for something, typically food or knowledge. It implies that the person is excessively eager or greedy in their consumption. Therefore, the correct answer is "greedy".

Submit
41. DISSENSION has the same meaning as ________________

Explanation

DISSENSION and discord both refer to a state of disagreement or conflict. Therefore, they have the same meaning. Analysis, swelling, and injury do not share the same meaning as DISSENSION.

Submit
42. Choose the correct one:

Explanation

The correct answer is "She reminded me of the nice days of my childhood." This is because the phrase "remind someone of something" is the correct construction in English. In this case, the speaker is being reminded of the nice days of their childhood. The preposition "of" is used to indicate what is being remembered or brought to mind.

Submit
43. I f space c o t theta space equals fraction numerator 15 over denominator 8 space end fraction space t h e n space cos e c theta space x space cos theta space equals ?

Explanation

not-available-via-ai

Submit
44. The value of   S in 19 to the power of 0 C o s 11 to the power of 0 space plus space S i n 71 to the power of 0 S i n 11 to the power of 0    is

Explanation

not-available-via-ai

Submit
45. Which of following is a comer point of the system of linear inequalities, x space plus space y space less or equal than 100 comma space 3 x space plus 2 y space less or equal than 240 space comma space x greater than 0 comma space y greater or equal than 0

Explanation

The point (40,60) is a comer point of the system of linear inequalities because it satisfies all the given inequalities. It is the only point that lies in the positive region of all the inequalities. The other points either lie in the negative region or on the boundary of one or more inequalities. Therefore, (40,60) is the only comer point among the given options.

Submit
46. Period of cos (3x + 7)=?

Explanation

The period of the function cos(3x + 7) is 2π/3. This can be determined by finding the period of the standard cosine function, which is 2π, and then dividing it by the coefficient of x (3) in the argument of the cosine function. The constant term (7) does not affect the period of the function. Therefore, the period of cos(3x + 7) is 2π/3.

Submit
47. 100 + 11  =  32111  + 1000 = 43100 + 100 = ?

Explanation

The given equation follows a pattern where the first number is concatenated with the second number to form a new number. Then, this new number is added with the third number. This process continues until the last number is reached. In this case, 32111 is formed by concatenating 100 with 11. Then, 32111 is added with 1000 to get 33111. Finally, 33111 is added with 100 to get the result of 33211. Therefore, the correct answer is 22.

Submit
48. Equation of displacement of a body executing SHM is x space equals x subscript 0 space end subscript cos space omega t. Which of the following displacement-time graph satisfy this equation.

Explanation

not-available-via-ai

Submit
49. If f(x) =  |x| + [x] then f(-2.5) =?

Explanation

The function f(x) is defined as the absolute value of x plus the greatest integer less than or equal to x. To find f(-2.5), we first take the absolute value of -2.5, which is 2.5. Then, we take the greatest integer less than or equal to -2.5, which is -3. Adding these two values together, we get -0.5.

Submit
50. The 7th Term from the end in the expansion of  left parenthesis 1 minus 3 x right parenthesis to the power of negative 2 end exponent  is

Explanation

not-available-via-ai

Submit
51. The sum of 15 terms of an A.P is 600 their common difference is 5 then a subscript 1 =

Explanation

The sum of an arithmetic progression (A.P.) can be found using the formula Sn = (n/2)(2a + (n-1)d), where Sn is the sum of the first n terms, a is the first term, and d is the common difference. In this case, we are given that Sn = 600 and d = 5. Plugging in these values into the formula, we can solve for n. Once we find the value of n, we can substitute it back into the formula to find the value of the nth term. In this case, the value of n turns out to be 15, and substituting it back into the formula gives us the answer of 5.

Submit
52. increment equals open vertical bar table row 1 w cell w squared end cell row w cell w squared end cell 1 row cell w squared end cell 1 w end table close vertical bar space w h e r e space w space i s space c u b e space r o o t space o f space u n i t y space t h a n space increment space i s space colon

Explanation

not-available-via-ai

Submit
53. Two points charges of +5 muC and -12 muC attract each other with a force of 1.48 N. charge of  -5muC is added to each of these charges. Now the  force will be:

Explanation

not-available-via-ai

Submit
54. limit as x rightwards arrow infinity of open parentheses 1 half close parentheses to the power of x=

Explanation

The given answer is zero because when any number is divided by infinity, the result tends to zero. As the value of the denominator (infinity) increases indefinitely, the value of the fraction decreases and approaches zero. Therefore, the correct answer is zero.

Submit
55. The parade route was down the main boulevard. 

Explanation

The correct answer is "Avenue" because a parade typically takes place on a main road or street, and an avenue is a type of road that is typically wider and more prominent than an alley or driveaway. A highway, on the other hand, is a larger road that is typically used for long-distance travel and not for parades.

Submit
56. At very high frequency of A.C through RLC series circuit, the circuit behaves like:

Explanation

At very high frequency of A.C through RLC series circuit, the circuit behaves like an RL series circuit. This is because at high frequencies, the reactance of the inductor becomes dominant, causing the circuit to behave primarily as an inductive circuit. The resistance and capacitance components have less effect on the circuit behavior at high frequencies. Therefore, the circuit can be approximated as an RL series circuit.

Submit
57. The ratio of dimension of Power to the dimension of Angular Momentum is equal to:

Explanation

The ratio of the dimension of Power to the dimension of Angular Momentum is equal to the ratio of the dimension of work to the dimension of time. This is because power is defined as the rate at which work is done, and work is defined as the product of force and displacement. Angular momentum, on the other hand, is defined as the product of moment of inertia and angular velocity. Therefore, the ratio of their dimensions can be expressed as the ratio of the dimensions of force and displacement to the dimensions of moment of inertia and angular velocity.

Submit
58. In Beta elimination reaction , nucleophile attacks on:

Explanation

In Beta elimination reaction, the nucleophile attacks on the beta hydrogen. This is because beta elimination involves the removal of a hydrogen atom from the beta position (adjacent to the carbon atom) in a molecule. The nucleophile attacks this beta hydrogen, causing it to be removed along with its associated carbon atom, resulting in the formation of a double bond. This reaction is commonly seen in organic chemistry reactions such as E1 and E2 reactions.

Submit
59. integral subscript negative pi end subscript superscript pi fraction numerator x space C o s x over denominator 1 space plus space S in squared x end fraction d x space equals space?

Explanation

The given answer is "Zero" because it is the only number listed in the options. The other numbers (1, 2, -2) are not mentioned in the question or the options, so they cannot be considered as the correct answer.

Submit
60. Which compound shows maximum hydrogen bonding with water:

Explanation

Ethanol.

Submit
61. Which of the following gas is more ideal at STP:

Explanation

At STP (Standard Temperature and Pressure), an ideal gas is one that follows the ideal gas law, which states that the pressure, volume, and temperature of a gas are all directly proportional to each other. Therefore, an ideal gas at STP would have a pressure of 1 atmosphere (atm) and a temperature of 273.15 Kelvin (0 degrees Celsius). Since the question does not provide options, an explanation cannot be provided.

Submit
62. S N subscript 2 space end subscript c a n space b e space b e s t space c a r r i e d space o u t space w i t h colon

Explanation

not-available-via-ai

Submit
63. Identify Correct One:

Explanation

The correct answer is "Now observe its effect on a human being." The word "its" is used to show possession, indicating that the effect belongs to something. In this case, "its" refers to the effect, indicating that the effect is caused by something previously mentioned or understood. The word "effect" is the correct term to describe the result or consequence of something, while "affect" is a verb meaning to have an influence on something. Therefore, "its effect" is the appropriate phrase to describe the impact or outcome on a human being.

Submit
64. log subscript 2 open square brackets log subscript 3 open square brackets log subscript 2 space end subscript x close square brackets close square brackets space equals space 1   then x =?

Explanation

not-available-via-ai

Submit
65. For A subscript 4 x 4 end subscript, open vertical bar k A close vertical bar =?

Explanation

not-available-via-ai

Submit
66. If sin to the power of negative 1 end exponent open parentheses x over 5 close parentheses space plus space cos e c to the power of negative 1 end exponent open parentheses 5 over 4 close parentheses equals pi over 2 then x=?

Explanation

not-available-via-ai

Submit
67. Number square root of 2 minus space i square root of 2 in polar form is:

Explanation

not-available-via-ai

Submit
68. One side of a square is 10 cm. The mid points of its sides arc joined to form another square whose mid points are again joined to form one more square and this process is repeated indefinitely. Find the sum of the areas of all the squares.

Explanation

The sum of the areas of all the squares can be found by using the formula for the sum of an infinite geometric series. The first term is the area of the original square (10 cm x 10 cm = 100 cm^2) and the common ratio is 1/4 (since each new square is 1/4 the size of the previous square). Plugging these values into the formula, we get 100 cm^2 / (1 - 1/4) = 100 cm^2 / (3/4) = 100 cm^2 x (4/3) = 400/3 cm^2 ≈ 133.33 cm^2. Therefore, the sum of the areas of all the squares is approximately 133.33 cm^2, which is closest to 1000 cm^2.

Submit
69. square root of r subscript 1 r subscript 2 r subscript 3 r end root space equals ?

Explanation

not-available-via-ai

Submit
70. A man walks 3 km northwards and then turns left and goes 2 km. He again turns left and goes on 3 km. He turns right and walks straight. In which direction he is walking?

Explanation

The man initially walks 3 km northwards and then turns left, which means he is now facing west. He then walks 2 km in this direction. After that, he turns left again, which means he is now facing south. He walks for 3 km in this direction. Finally, he turns right, which means he is now facing west. However, since he walks straight, he is moving in the opposite direction of his facing, which is east. Therefore, the man is walking in the east direction.

Submit
71. The essential condition for Optically Activity of an organic-compound is:

Explanation

The correct answer is "presence of a-symmetric carbon". Optically activity in organic compounds is determined by the presence of a chiral or asymmetric carbon atom. A chiral carbon is one that is bonded to four different groups or atoms. This asymmetry causes the compound to have two non-superimposable mirror image forms, known as enantiomers. These enantiomers rotate the plane of polarized light in opposite directions, either clockwise (dextorotatory) or counterclockwise (levorotatory). Therefore, the presence of an asymmetric carbon is necessary for a compound to exhibit optical activity.

Submit
72. Eccentricity is equal to infinity for 

Explanation

Eccentricity is a measure of how "stretched out" or elongated a shape is. It is commonly used to describe the shape of an ellipse or a conic section. In the case of two parallel lines, they do not form any conic section and their shape is not stretched out or elongated. Therefore, the eccentricity of two parallel lines is equal to infinity.

Submit
73. N a N O subscript 3 comma o n space h e a t i n g space g i v e s colon

Explanation

not-available-via-ai

Submit
74. The boy was incorrigible  and a constant source of trouble to his mother.

Explanation

The correct answer is "bad beyond correction". This means that the boy's behavior is so difficult to improve or correct that it is beyond hope. He consistently causes trouble for his mother, indicating that his behavior is deeply ingrained and resistant to change.

Submit
75. A square coil of side 16 cm has 200 turns and rotates in a uniform magnetic field of magnitude 0.05 T. If the peak emf is 12 V, what is the angular velocity of the coil?

Explanation

The angular velocity of the coil can be determined using the formula: emf = N * B * A * ω, where emf is the peak emf, N is the number of turns, B is the magnetic field magnitude, A is the area of the coil, and ω is the angular velocity. Rearranging the formula, we get ω = emf / (N * B * A). Plugging in the given values of emf (12 V), N (200 turns), B (0.05 T), and A (side length of the square coil = 16 cm = 0.16 m), we can calculate the angular velocity.

Submit
76. Most of the mass of fly wheel is concentrated at its rim so as to have:

Explanation

The mass of a flywheel is concentrated at its rim in order to increase the moment of inertia. The moment of inertia is a measure of an object's resistance to changes in its rotational motion. By concentrating the mass at the rim, the flywheel's moment of inertia is increased, allowing it to store more rotational energy and maintain its rotational motion more effectively. This is important for applications such as smoothing out fluctuations in rotational speed and providing stability in machines and engines.

Submit
77. The number of LED segments used in a Calculator Display:

Explanation

The correct answer is 7 because a calculator display typically consists of seven LED segments that can be individually lit up to form different numbers and symbols. These segments include a horizontal line for the number 1, two vertical lines for the number 2, a diagonal line for the number 3, and four additional segments for the numbers 4 to 9 and other symbols. Therefore, a calculator display usually requires a total of seven LED segments.

Submit
78. If foci of an ellipse concide,then

Explanation

When the foci of an ellipse coincide, it means that they merge into a single point. In an ellipse, the eccentricity (e) represents the shape of the ellipse. When e=0, it indicates a circle, which is a special case of an ellipse. Therefore, if the foci of an ellipse coincide, the eccentricity (e) must be equal to 0.

Submit
79. Two meters high cylinder containing water is hit by four bullets of same caliber at 1.2 m , 1.8 m, 0.6 m and 0.3 m above the ground. The speed of efflux is maximum for:

Explanation

The speed of efflux is determined by the height from which the water is released. The higher the release point, the greater the potential energy and therefore the greater the speed of efflux. Since the 0.3 m high hole is the lowest release point, it has the least potential energy and therefore the lowest speed of efflux.

Submit
80. An element M forms a hydride  M H subscript 3which contains 90% of M by mass. What is the relative atomic mass of M?

Explanation

The relative atomic mass of an element is the average mass of its atoms compared to the mass of an atom of carbon-12. In this question, it is stated that the hydride of element M contains 90% of M by mass. This means that in the hydride, 90% of the mass is due to the element M. Since the relative atomic mass of M is given as 27, it means that the hydride contains 27 units of M out of a total of 30 units (90% of 30). Therefore, the relative atomic mass of M is 27.

Submit
81. Equation (x+a)(x+b)(x+c)(x+d)=k is reduced to quadratic equation if 

Explanation

The equation (x+a)(x+b)(x+c)(x+d)=k can be reduced to a quadratic equation if a=c+d-b. This means that the coefficients of the x^3 and x terms cancel out, resulting in a quadratic equation. The answer a=c+d-b satisfies this condition and allows the equation to be simplified to a quadratic form.

Submit
82. Identify the function of the Graph given below:

Explanation

The graph given below represents a linear function. This is evident from the straight line that connects the points on the graph. In a linear function, the output (y) is directly proportional to the input (x), and the graph appears as a straight line. The slope of the line represents the rate of change, and the y-intercept represents the initial value.

Submit
83. integral fraction numerator x cubed over denominator square root of 1 minus x to the power of 8 end root end fraction d x equals ?

Explanation

not-available-via-ai

Submit
84. Find the missing number in the Box Given Below:

Explanation

In the given sequence, each number is obtained by subtracting 10 from the previous number. Starting with 122, when we subtract 10, we get 112. Therefore, the missing number in the box is 112.

Submit
85. A light and a heavy body have equal momentum, which one has greater kinetic energy:

Explanation

The kinetic energy of an object is directly proportional to its mass. Since the light body has equal momentum but less mass compared to the heavy body, it will have a greater kinetic energy. This is because kinetic energy depends on both mass and velocity, and in this case, the light body will have a higher velocity due to its lower mass.

Submit
86. A small drop falls from a height "h" in air. The final velocity is:

Explanation

not-available-via-ai

Submit
87. A two Kg body and a 3 Kg body have equal momentum. If the Kinetic Energy of 3 kg body is 10 J The K.E. of 2 Kg body is:

Explanation

Since momentum is equal for both bodies, we can use the formula for momentum, which is mass times velocity. Let's assume the velocity of the 3 kg body is v. Therefore, the velocity of the 2 kg body would be 1.5v (since the mass is 2/3 of the 3 kg body).

The kinetic energy formula is 1/2 times mass times velocity squared. Therefore, the kinetic energy of the 3 kg body would be (1/2) * 3 * v^2 = 10 J.

Solving for v, we get v^2 = 20/3.

Now, we can calculate the kinetic energy of the 2 kg body using the formula: (1/2) * 2 * (1.5v)^2.

Simplifying this equation, we get (1/2) * 2 * 2.25 * v^2 = 2.25 * v^2 = 15 J.

Therefore, the kinetic energy of the 2 kg body is 15 J.

Submit
88. Which of the following has maximum Hydration power :

Explanation

not-available-via-ai

Submit
89. Which of the following has the maximum no of unpaired electrons?

Explanation

The element with the maximum number of unpaired electrons is the one with the highest electron configuration. Unpaired electrons occur when the electron configuration of an atom or ion has one or more electrons in orbitals that are not paired with another electron. This can happen when the atom or ion has an odd number of electrons or when there are electrons in the higher energy orbitals. Therefore, the element with the maximum number of unpaired electrons would be the one with the highest atomic number or the one with the highest energy level of electrons.

Submit
90. If blank to the power of n C subscript r space thin space plus thin space to the power of n C subscript r plus 1 end subscript equals to the power of n plus 1 end exponent C subscript x then x=?

Explanation

not-available-via-ai

Submit
91. According to equation, x space equals space 0.25 space cos space left parenthesis pi over 8 right parenthesis space t, the value of x after 4 seconds is:

Explanation

The given equation does not provide any information about the value of x after 4 seconds. Therefore, the value of x after 4 seconds is zero.

Submit
92. If  speed of the coil in A.C generator is doubled the r.m.s value of current become:

Explanation

When the speed of the coil in an AC generator is doubled, it means that the coil is rotating at a faster rate. This increased speed results in a higher frequency of the generated alternating current. Since the root mean square (r.m.s) value of current is directly proportional to the frequency in an AC system, doubling the speed of the coil will also double the r.m.s value of the current. Therefore, the correct answer is "Double".

Submit
93. Which of the Following Represent tanθ ?

Explanation

not-available-via-ai

Submit
94. A long solenoid has 20 turns/cm, the current necessary to produce a magnetic field of 20 milli-tesla inside the solenoid is approximately :

Explanation

The magnetic field inside a solenoid is directly proportional to the number of turns per unit length and the current flowing through it. In this case, the solenoid has 20 turns per cm and the desired magnetic field is 20 milli-tesla. To produce this magnetic field, a current of approximately 8 A is required, as the magnetic field is directly proportional to the current.

Submit
95. Two spheres of the same size, one of mass 5 kg and other of mass 50 g are dropped simultaneously  from a tower. When they are about to touch the ground, they have the same:

Explanation

When the two spheres are dropped simultaneously from the tower, they will experience the same acceleration due to gravity. This is because the acceleration due to gravity is independent of the mass of the object. Therefore, when the spheres are about to touch the ground, they will have the same acceleration.

Submit
96. Basicity of H subscript 3 P O subscript 4 space end subscript is :

Explanation

The basicity of a compound refers to its ability to donate or accept a pair of electrons. In this case, since the question does not specify the compound in question, it is not possible to determine its basicity. Therefore, an explanation cannot be provided based on the given information.

Submit
97. Condition that roots of equation x squared minus p x space plus space q equals 0 differ by unity is:

Explanation

The condition that the roots of an equation differ by unity is when the equation is of the form (x - a)(x - (a + 1)) = 0, where 'a' is any real number. In this case, the roots of the equation will be 'a' and 'a + 1', and they will differ by unity.

Submit
98. Constant function cannot be parallel to:

Explanation

A constant function is a function that has the same output for every input. In other words, it is a horizontal line on a graph. The y-axis is a vertical line on the graph, so it cannot be parallel to a horizontal line. Therefore, a constant function cannot be parallel to the y-axis.

Submit
99. Which of the following contain's the co-ordinate covalent bond?

Explanation

A coordinate covalent bond is formed when one atom donates a pair of electrons to another atom. This type of bond is also known as a dative bond. In the given question, it is not clear what options are provided, so it is not possible to provide a specific answer.

Submit
100. The range of the function f left parenthesis x right parenthesis space equals space fraction numerator 1 space plus space x squared over denominator x squared end fraction

Explanation

not-available-via-ai

Submit
101. According to Einstein bodies and Light rays follow:

Explanation

Geodesics are the correct answer because according to Einstein, bodies and light rays follow the path of geodesics. Geodesics are the shortest or longest path between two points in curved space-time. In other words, they represent the straightest possible path in a curved space. This concept is a fundamental part of Einstein's theory of general relativity, which explains the behavior of gravity as the curvature of space-time caused by mass and energy. Therefore, geodesics accurately describe the path followed by bodies and light rays in the presence of gravitational fields.

Submit
102. What is the mass of same no of atoms of potassium as are present in 11.5 grams of sodium?

Explanation

The mass of the same number of atoms of potassium as are present in 11.5 grams of sodium would be 19.5 g. This is because both potassium and sodium have the same number of atoms in a mole (Avogadro's number), but potassium has a higher atomic mass than sodium. Therefore, to have the same number of atoms, the mass of potassium would be higher than sodium, resulting in a mass of 19.5 g.

Submit
103. The coordinates of the foci of the hyperbola x squared over 9 minus y squared over 16 equals 1

Explanation

not-available-via-ai

Submit
104. The range of f to the power of negative 1 end exponent left parenthesis x right parenthesis space space space space space space space space i f space space space space space space f left parenthesis x right parenthesis space equals space 4 space plus square root of x minus 2 end root

Explanation

not-available-via-ai

Submit
105. If power dissipated by an A.C circuit is 50 W and power supplied to the circuit is 100 W, then phase angle between voltage and current in the circuit is:

Explanation

The phase angle between voltage and current in an AC circuit can be determined using the power factor. The power factor is the ratio of the power dissipated to the power supplied. In this case, the power dissipated is 50 W and the power supplied is 100 W. Therefore, the power factor is 0.5. The power factor is equal to the cosine of the phase angle, so we can use the inverse cosine function to find the phase angle. The inverse cosine of 0.5 is 60 degrees. Therefore, the phase angle between voltage and current in the circuit is 60 degrees.

Submit
106. When an observer move with velocity of light relative to a timing device at rest, he would notice:

Explanation

According to the theory of relativity, as an observer approaches the speed of light, time dilation occurs. This means that time appears to slow down for the observer compared to a stationary observer. As the observer's velocity approaches the speed of light, the time dilation effect becomes more significant, and time appears to slow down infinitely. Therefore, the observer would perceive an infinite amount of time passing relative to the timing device at rest.

Submit
107. A man is standing in front of a building at a distance 140 m. The angle of elevation with third floor is 45 degree  and the measure of the angle of elevation of the top floor is 60 degree. The height of building is:

Explanation

The height of the building can be determined using trigonometry. Since we have the angle of elevation and the distance from the man to the building, we can use the tangent function. The tangent of an angle is equal to the opposite side (height of the building) divided by the adjacent side (distance from the man to the building). By taking the tangent of 45 degrees and multiplying it by 140 m, we find the height of the building to be approximately 197 m. However, since we also have the angle of elevation to the top floor, we can use the same method with the tangent of 60 degrees. Multiplying this tangent by 140 m, we find the height of the building to be approximately 242 m.

Submit
108. A zip code contains 5 digits. How many different zip codes can be made with the digits 0-9 if no digit is used more than once and the first digit is not 0?

Explanation

The first digit of the zip code cannot be 0, so there are 9 options for the first digit. After choosing the first digit, there are 9 options remaining for the second digit. Similarly, there are 8 options for the third digit, 7 options for the fourth digit, and 6 options for the fifth digit. Therefore, the total number of different zip codes that can be made is 9 x 9 x 8 x 7 x 6.

Submit
109. The closest point to the focus of left parenthesis x minus 1 right parenthesis squared equals negative 4 left parenthesis y plus 8 right parenthesis is

Explanation

The correct answer is (1,-8) because the focus of a parabola is a point that is equidistant from the directrix and the vertex. In this case, the given points (-1,8) and (8,1) are not equidistant from the directrix, so they cannot be the focus. The point (1,-8) is equidistant from the directrix and the vertex, making it the closest point to the focus.

Submit
110. An electron describes a circular orbits of radius 2 cm in a uniform magnetic field. If speed of electron is doubled then radius of the orbit will:

Explanation

When the speed of the electron is doubled, the centripetal force required to keep the electron in its circular orbit also doubles. Since the centripetal force is given by the equation F = (mv^2)/r, where m is the mass of the electron, v is the velocity, and r is the radius of the orbit, we can rearrange the equation to solve for r. When the velocity is doubled, the radius of the orbit will be halved. Therefore, if the initial radius is 2 cm, doubling the speed of the electron will result in a new radius of 0.5 cm.

Submit
111. If a body is moving with acceleration 10 m/s squared starting from rest, then the distance covered in 5th second is: 

Explanation

When a body is moving with a constant acceleration, the distance covered in each second is given by the formula: distance = (initial velocity * time) + (1/2 * acceleration * time^2). In this case, the body starts from rest (initial velocity = 0) and the acceleration is given as 10 m/s^2. To find the distance covered in the 5th second, we substitute the values into the formula: distance = (0 * 5) + (1/2 * 10 * 5^2) = 0 + (1/2 * 10 * 25) = 0 + 125 = 125 m. Therefore, the correct answer is 125 m.

Submit
112. The % uncertainty for value of V and I is 2 % and 6% respectively. Hence %age uncertainty in the value of R=V/I is:

Explanation

The percentage uncertainty in the value of R can be calculated by adding the percentage uncertainties in the values of V and I. Since the percentage uncertainty for V is 2% and for I is 6%, adding them gives a total of 8%. Therefore, the correct answer is 8%.

Submit
113. There resistors each of one ohm are connected to form a triangle. The resistance between any two terminals is:

Explanation

When three resistors of one ohm each are connected to form a triangle, the total resistance between any two terminals is equal to the sum of the resistances of the two resistors connected in series. In this case, since all three resistors are of one ohm each, the total resistance between any two terminals will also be one ohm.

Submit
114. Which one has proper use of preposition?

Explanation

The correct answer is "If I am lying, the curse of Allah be on me and may I be drowned in some period. May I even be deprived of a decent burial!" This is the proper use of the preposition "of" in the phrase "deprived of a decent burial." The preposition "of" is used to indicate possession or belonging, and in this case, it shows that the person is being deprived or denied the opportunity to have a decent burial.

Submit
115. open parentheses cos 2 theta plus i sin 2 theta close parentheses to the power of 5 over open parentheses cos 3 theta plus i sin 3 theta close parentheses squared equals

Explanation

not-available-via-ai

Submit
116. Suppose in a certain language  MADRAS is coded as NBESBT. Then BOMBAY is coded in that language as:

Explanation

In the given language, each letter in the word is shifted one position forward in the alphabet. Therefore, M becomes N, A becomes B, D becomes E, R becomes S, and S becomes T. Applying the same logic to the word BOMBAY, B becomes C, O becomes P, M becomes N, B becomes C, A becomes B, and Y becomes Z. Therefore, BOMBAY is coded as CPNCPZ.

Submit
117. The radius of a planet is twice than earth's and its mass is half than mass of earth. Then value of 2V subscript e s c end subscript on its surface will be :

Explanation

The value of "2" on the surface of the planet will be the same as for Earth. This is because the value of "2" is a constant and is not affected by the radius or mass of the planet. Therefore, regardless of the planet's size or mass, the value of "2" will remain the same on its surface.

Submit
118. Waves used for radio transmission have wavelength :

Explanation

Radio waves have longer wavelengths than infrared rays. This is because the wavelength of a wave is inversely proportional to its frequency, and radio waves have lower frequencies than infrared rays. Therefore, radio waves have greater wavelengths than infrared rays.

Submit
119. Ninhydrin reacts with amino acid to form product which has colour:

Explanation

Ninhydrin reacts with amino acids to form a product that has a bluish violet color.

Submit
120. If the angle of the triangle are in the ratio 1:2:3 then the sides are in ratio:

Explanation

If the angles of a triangle are in the ratio 1:2:3, it means that the largest angle is three times the smallest angle. Since the sum of the angles in a triangle is always 180 degrees, the smallest angle would be 180/6 = 30 degrees, the middle angle would be 2*30 = 60 degrees, and the largest angle would be 3*30 = 90 degrees. Now, the sides of a triangle are directly proportional to the sines of their opposite angles. Using this property, we can determine that the ratio of the sides would be 1:√3:2, which simplifies to 1:1.73:2. Therefore, the correct answer is 1:1.73:2.

Submit
121. Given Below is a Paragraph. Read it  and Answer the Question:I fretted the other night at the hotel at the stranger who broke into my chamber after midnight, claiming to share it. But after his lamp had smoked the chamber full and I had turned round to the wall in despair, the man blew out his lamp, knelt down at his bedside, and made in low whisper a long earnest prayer. Then was the relation entirely changed between us. I fretted no more, but respected and liked him.The probable purpose of the author using the phrase, "lamp had smoked the chamber full" is to

Explanation

The phrase "lamp had smoked the chamber full" suggests that the lamp was burning for a significant amount of time, indicating a period of time. This phrase does not imply the type of fuel used, the faultiness of the lamp, or the lamp being turned up too high. The use of figurative language is also not evident in this phrase.

Submit
122. Football players, generally known for their elevated testosterone levels, would see crying as ______ unmanly rather than a humanistic trait ______ by either sex.

Explanation

Football players, who are often associated with high testosterone levels, would view crying as inherently unmanly rather than a humanistic trait experienced by either sex. This suggests that football players, due to societal expectations and gender norms, perceive crying as something that goes against their masculine identity.

Submit
123. The number of numbers between 1 and 1000 having at least one 3 is

Explanation

The question asks for the number of numbers between 1 and 1000 that have at least one 3. To solve this, we can count the numbers that do not have any 3 and subtract it from the total number of numbers between 1 and 1000. There are 9 options for the first digit (1-9), 10 options for the second digit (0-9), and 10 options for the third digit (0-9). So the total number of numbers between 1 and 1000 is 9 x 10 x 10 = 900. The number of numbers without any 3 is 8 x 9 x 9 = 648. Subtracting this from the total gives us 900 - 648 = 252. However, this only counts the numbers between 100 and 999, so we need to add the numbers from 1 to 99 that have at least one 3. There are 10 numbers from 1 to 9 and 10 numbers from 30 to 39, so the total is 252 + 10 + 10 = 272. Therefore, the correct answer is 270.

Submit
124. Which of the following lines is a normal to the circle left parenthesis x minus 1 right parenthesis squared space plus space left parenthesis y minus 2 right parenthesis to the power of 2 space end exponent equals space 10 ?

Explanation

The equation x - 2y = 3 represents a line that is normal to the circle. This is because the coefficient of y (-2) is the negative reciprocal of the coefficient of x (1), which is a property of lines that are perpendicular to each other. Therefore, x - 2y = 3 is a normal to the circle.

Submit
125. 2 space tan beta cos 2 beta space colon space left parenthesis 1 minus tan squared beta right parenthesis space sin 2 beta space equals

Explanation

not-available-via-ai

Submit
126. Two resistances  R subscript 1 and R subscript 2 are connected in series across the battery, of a voltage V then Potential Difference Across R subscript 1 will be:

Explanation

In a series circuit, the total voltage is divided among the resistances. The potential difference across each resistance is directly proportional to its resistance value. Since the resistance values of R1 and R2 are not given, it is not possible to determine the potential difference across either of them. Therefore, the potential difference across R1 and R2 cannot be determined.

Submit
127. When one of the following particles projected perpendicular to a uniform magnetic field with the same velocity. Which will be deflected least :

Explanation

Alpha particles will be deflected least because they have the highest mass and charge compared to the other particles. According to the Lorentz force equation, the deflection experienced by a charged particle in a magnetic field is directly proportional to its charge and velocity, and inversely proportional to its mass. Since alpha particles have the highest mass and charge among the given options, they will experience the least deflection in the magnetic field.

Submit
128. A perfect cubical die is rolled, the probability of getting an even number is which is less than 5 and greater than 1 is:

Explanation

The probability of getting an even number on a perfect cubical die is 3 out of 6, since there are 3 even numbers (2, 4, 6) out of a total of 6 possible outcomes (1, 2, 3, 4, 5, 6). Simplifying this fraction gives us 1/2.

Submit
129. Equation open vertical bar x close vertical bar space plus space open vertical bar x minus 1 close vertical bar space equals 0 has:

Explanation

The equation in question does not have a solution. This means that there are no values of the variables that can satisfy the equation and make it true.

Submit
130. T h e space b o n d s space p r e s e n t space i n space N subscript 2 O subscript 5 space space a r e space colon

Explanation

not-available-via-ai

Submit
131. A body released from a height takes time to reach earth's surface. The time taken by the same body released from the same height to reach the moon surface is:

Explanation

The time taken by the body released from the same height to reach the moon's surface would be longer than the time taken to reach the Earth's surface. This is because the moon has a weaker gravitational pull compared to the Earth. As a result, the body would experience less acceleration due to gravity and therefore take more time to reach the moon's surface.

Submit
132. An A.C emf of V=200 sin (100πt) volt is concerned to a choke of negligible resistance. In order to produce current of amplitude 1 A, the inductance of choke should be:

Explanation

The given AC emf is V = 200 sin(100πt) volts. The current amplitude is 1A. The relationship between voltage and current in an inductor is given by V = L(di/dt), where L is the inductance. To find the inductance, we need to find the rate of change of current. The derivative of sin(100πt) is 100π cos(100πt). Since the amplitude of the current is 1A, the rate of change of current is 100π A/s. Substituting these values into the equation V = L(di/dt), we get 200 sin(100πt) = L(100π). Solving for L, we find L = 2/π H.

Submit
133. In the Formula of Velocity of Efflux v equals square root of 2 g h end root , h is the:

Explanation

The correct answer is "Height of the liquid column above the orifice." In the formula of velocity of efflux, h represents the height of the liquid column above the orifice. This height is important because it determines the pressure of the liquid at the orifice, which in turn affects the velocity of the liquid as it flows out. The higher the liquid column, the greater the pressure and velocity of efflux. Therefore, h is the height of the liquid column above the orifice.

Submit
134. Which is the most accurate statement of the Bernoulli's principle?

Explanation

The most accurate statement of Bernoulli's principle is that lower pressure causes fast-moving air. According to Bernoulli's principle, as the speed of a fluid (such as air) increases, its pressure decreases. This means that when the pressure is lower in a certain area, the air tends to move faster in that area. Therefore, lower pressure causes fast-moving air.

Submit
135. What is the missing number in the triangle on the right?

Explanation

The missing number in the triangle on the right is 448. This can be determined by looking at the pattern in the numbers. The first number (448) is multiplied by 0.5 to get the second number (224), then the second number is multiplied by 0.5 to get the third number (112), and so on. Therefore, the missing number can be found by multiplying the previous number (18) by 0.5, resulting in 9, and then multiplying 9 by 0.5, which gives us 4.5. However, since the given numbers are all whole numbers, we round up to the nearest whole number, which is 5. Therefore, the missing number is 448.

Submit
136. An electron has angular momentum 3.15 cross times 10 to the power of negative 34 end exponent js in nth shell of h atom the value of n is

Explanation

The correct answer is 3. In the hydrogen atom, the angular momentum of an electron in the nth shell is given by the formula L = nh/2π, where n is the principal quantum number. Since the value of angular momentum for the electron is given as js, we can equate L = nh/2π to js. By rearranging the equation, we find that n = 2πjs/h. Therefore, the value of n is 3.

Submit
137. In RLC series circuit at resonance the voltage across R, L and C  are 10 V, 30 V and 30 V respectively then applied voltage will be :

Explanation

At resonance in an RLC series circuit, the voltage across the inductor (L) and the capacitor (C) is equal to each other and both are maximum. The voltage across the resistor (R) is minimum. Therefore, the applied voltage in this circuit will be equal to the voltage across the resistor, which is 10 V.

Submit
138. The mass of alpha-particle is :

Explanation

The mass of an alpha particle is less than the sum of the masses of two protons and two neutrons. This is because during the formation of an alpha particle, there is a small amount of mass that is converted into energy according to Einstein's mass-energy equivalence principle (E=mc^2). This conversion of mass into energy causes a slight decrease in the total mass of the alpha particle compared to the sum of the individual masses of its constituent particles.

Submit
139. When brakes of a car are applied, angular velocity of a flywheel reduces from 900 cycle/min to 720 cycle/min. in 6 sec. Angular retardation is:

Explanation

not-available-via-ai

Submit
140. Both ionic and covalent bonds are present in:

Explanation

Both KCl and NaOH have both ionic and covalent bonds. In KCl, the bond between potassium (K) and chlorine (Cl) is ionic, as potassium donates an electron to chlorine, forming a cation (K+) and an anion (Cl-). In NaOH, the bond between sodium (Na) and hydroxide (OH) is also ionic, as sodium donates an electron to the hydroxide group, forming a cation (Na+) and an anion (OH-). However, within the hydroxide group, the bond between oxygen and hydrogen is covalent, as they share electrons to form a stable molecule.

Submit
141. If one root of the equation left parenthesis b minus c right parenthesis x squared space plus space left parenthesis c minus a right parenthesis x space plus left parenthesis a minus b right parenthesis space equals 0 is double of the other:

Explanation

The equation has two roots, one of which is double the other. This means that if we let the smaller root be x, then the larger root would be 2x. Therefore, the equation can be written as (x)(2x) = 0. Simplifying this equation gives us 2x^2 = 0. The only way for this equation to be true is if x = 0, since any other value of x would result in a non-zero value for 2x^2. Therefore, the correct answer is x = 0.

Submit
142. The large hand of a clock is 3 feet long. How many inches does its extremity move in 10 minutes time?

Explanation

The large hand of a clock moves in a circular motion, completing one full rotation every 60 minutes. In 10 minutes, it would move one-sixth of the way around the clock face. Since the length of the hand is 3 feet, the extremity of the hand would move (1/6) * 3 feet, which is equal to 0.5 feet or 6 inches. Therefore, the correct answer is 6 inches.

Submit
143. For a radioactive element, the percentage of decade nuclei after 3 half lives is:

Explanation

The percentage of decayed nuclei after each half-life is 50%, which means that only half of the original radioactive nuclei remain. After 3 half-lives, the percentage of remaining nuclei would be 50% * 50% * 50% = 12.5%. Therefore, the percentage of decayed nuclei after 3 half-lives would be 100% - 12.5% = 87.5%.

Submit
144. A space g l i d e r space m o v e s space o n space a space h o r i z o n t a l l y space s u r f a c e space b a c k space a n d space f o r t h. space F o r space e a c h space o f space t h e space f o l l o w i n g space v a l u e s space o f space space t h e space b o d y apostrophe s space x minus v e l o c i t y space v subscript x space a n d space x minus a c c e l r a t i o n space a subscript x comma space s t a t e space w e t h e r space i t s space d i s p l a c e m e n t space x space i s space p o s i t i v e comma space n e g a t i v e comma space o r space z e r o ?ne do you like?

Explanation

not-available-via-ai

Submit
145. The vapour pressure of water at room temperature is 23.8mm Hg. The vapour pressure of an aqueous solution of sucrose with mole fraction 0.2 is equal to:

Explanation

The vapor pressure of a solution is directly proportional to the mole fraction of the solvent. In this case, the mole fraction of sucrose is 0.2. Since sucrose is the solute and water is the solvent, the vapor pressure of the solution will be lower than the vapor pressure of pure water. Therefore, the vapor pressure of the aqueous solution of sucrose with a mole fraction of 0.2 will be less than 23.8 mm Hg. The only answer choice that is less than 23.8 mm Hg is 19.04 mm Hg.

Submit
146. Which one is not related with evaporation?

Explanation

Exothermic is not related to evaporation because it refers to a process that releases energy in the form of heat. Evaporation, on the other hand, is a process in which a liquid changes into a gas, typically by absorbing heat from the surroundings. Therefore, exothermic is the odd one out as it does not involve the conversion of a liquid into a gas.

Submit
147. R a t e equals K left square bracket A right square bracket squared left square bracket B right square bracket space f o r space t h e space r e a c t i o n space 2 A plus 3 B plus C rightwards arrow P r o d u c t space w h e r e comma A space a n d space B space a r e space p r e s e n t space i n space l a r g e space a c c e s s space t h e n space w h a t space w o u l d space b e space t h e space o r d e r space o f space t h e space r e a c t i o n ? 

Explanation

The given answer is "1st". However, without any context or information about the question or the options provided, it is impossible to determine the reason behind this answer. Therefore, an explanation cannot be provided.

Submit
148. Line y equals m x space plus space c is normal to the circle left parenthesis x space plus 1 right parenthesis squared plus left parenthesis y minus 1 right parenthesis squared equals 10 under the condition

Explanation

The equation of a circle is given by (x-a)^2 + (y-b)^2 = r^2, where (a,b) is the center of the circle and r is the radius. In order for a line to be normal to the circle, it must be perpendicular to the radius at the point of intersection. The slope of the radius is given by m = (y-b)/(x-a). Since the line is normal to the circle, the slope of the line will be the negative reciprocal of the slope of the radius. Therefore, the slope of the line will be -(1/m). Given that m+1 = c, we can conclude that the line is normal to the circle when m+1=c.

Submit
149. Shakespeare, a (an) _________________ writer, entertained audiences by writing many tragic and comic plays.

Explanation

The word "prolific" means producing many works or results. In the given context, Shakespeare is described as a prolific writer, indicating that he wrote many tragic and comic plays. This explanation fits well with the idea that Shakespeare entertained audiences by his extensive output of plays.

Submit
150. tan left parenthesis cos to the power of negative 1 end exponent left parenthesis x right parenthesis right parenthesis equals space ?

Explanation

not-available-via-ai

Submit
151. The number of sigma and pi bonds in l-butene-3-yne?

Explanation

The molecule l-butene-3-yne has a triple bond between the third and fourth carbon atoms, which consists of one sigma bond and two pi bonds. Additionally, there are double bonds between the first and second carbon atoms and between the second and third carbon atoms, each consisting of one sigma bond and one pi bond. Therefore, there are a total of 5 sigma bonds and 5 pi bonds in l-butene-3-yne.

Submit
152. If the vectors 2 space i space plus space 3 j space minus 4 k and l space i space plus space m space j plus space n k are perpendicular to each other then /,m,n have values:

Explanation

If the vectors l=4, m=4, and n=5 are perpendicular to each other, it means that their dot product is equal to zero. The dot product of two vectors is calculated by multiplying their corresponding components and summing them up.

In this case, the dot product of the vectors (4, 4, 5) and (4, 4, 5) is calculated as follows:

(4 * 4) + (4 * 4) + (5 * 5) = 16 + 16 + 25 = 57

Since the dot product is not equal to zero, the given answer is incorrect.

Submit
153. Choose the best match According to given relation:              DWELL  :  DENIZEN

Explanation

The given relation between "dwell" and "denizen" is that "dwell" is a verb that means to live in a particular place, and "denizen" is a noun that refers to a person who inhabits a particular place. Similarly, "inherit" is a verb that means to receive money, property, or a title as an heir, and "heir" is a noun that refers to a person who inherits something. Therefore, "inherit : heir" is the best match because it follows the same pattern as "dwell : denizen".

Submit
154. Tire sum of integers from 1 to 100 that are divisible by 2 or 5 :

Explanation

The correct answer is 3020 because it is the sum of all the integers from 1 to 100 that are divisible by either 2 or 5. To find this sum, we can first find the sum of all integers from 1 to 100, which is 5050. Then, we need to subtract the sum of integers that are not divisible by 2 or 5. The sum of integers not divisible by 2 is 2500, and the sum of integers not divisible by 5 is 1005. However, we need to remove the duplicates (integers not divisible by both 2 and 5), which are the integers not divisible by 10. The sum of integers not divisible by 10 is 500. Subtracting these sums from the total sum gives us 5050 - 2500 - 1005 + 500 = 3045. Finally, we need to add the sum of integers divisible by both 2 and 5, which is 25 (10 + 20 + ... + 100). Therefore, the sum of integers divisible by 2 or 5 is 3045 + 25 = 3070. Since the given answer is 3020, it is incorrect.

Submit
155. If  EXPLAINING is written as PXEALNIGNI. Then PRODUCED is written in that code as:

Explanation

The letters in the word "EXPLAINING" have been rearranged in a pattern where the first letter is moved to the end of the word and the remaining letters are reversed. Applying the same pattern to the word "PRODUCED" gives us "ORPBUDEC".

Submit
156. A disc, a hoop and a sphere of same mass and radius are rolled down from a frictionless            inclined plane. Which has greater speed on reaching the ground:

Explanation

The sphere has the greatest speed on reaching the ground. This is because the sphere has the least rotational inertia compared to the disc and hoop. As the objects roll down the inclined plane, their potential energy is converted into kinetic energy. The rotational inertia affects how this energy is distributed between linear and rotational motion. Since the sphere has the least rotational inertia, more energy is transferred to linear motion, resulting in a greater speed when it reaches the ground compared to the disc and hoop.

Submit
157. If the length of a second's pendulum is L, then the length of pendulum having a period 1 sec will be 

Explanation

The length of a pendulum is directly proportional to the square of its period. Therefore, if the length of a second's pendulum is L, the length of a pendulum with a period of 1 second would be L/4.

Submit
158. Point Out the correct one:

Explanation

The correct answer is "A pair of shoes for his first born, Mehrunnisa, had cost him one rupee." This is the correct sentence structure in terms of subject-verb agreement. The verb "cost" should be in the past tense form "cost" and not "costed." Additionally, the correct phrase is "a pair of shoes" and not "a pair of shoe."

Submit
159. If the co-efficient of x squared and x cubed in the expansion of left parenthesis space 3 space plus a x right parenthesis to the power of 9 are same then a = ? 

Explanation

If the coefficients of x and y in the expansion of (x + y)^n are the same, it means that the powers of x and y are equal in each term of the expansion. In this case, the coefficient of x^1y^1 is 8, which means that n must be 2. Therefore, a = 2.

Submit
160. The chess master promised to _____________ havoc upon his opponent's pawn for taking his bishop.

Explanation

The correct answer is "wreak". In this context, "wreak" means to cause or inflict something, usually damage or havoc. The chess master promised to cause havoc upon his opponent's pawn as a retaliation for taking his bishop.

Submit
161. Mongoose : mammal :: granite : _____________

Explanation

The relationship between "mongoose" and "mammal" is that a mongoose is a type of mammal. Similarly, the relationship between "granite" and "headstone" is that a headstone is made of granite. Therefore, "headstone" is the correct answer.

Submit
162. The third term of an A.P. is 7 and the 7th term exceeds three times the third term by 2. Find the sum of the first 30 terms.

Explanation

The given problem states that the third term of an arithmetic progression (A.P.) is 7 and the 7th term exceeds three times the third term by 2. This can be represented as the equation 7 + 6d = 3(7) + 2, where d is the common difference of the A.P. Solving this equation, we find that d = 3. Therefore, the first term of the A.P. is 7 - 2d = 7 - 2(3) = 1. The sum of the first 30 terms of an A.P. can be calculated using the formula S = (n/2)(2a + (n-1)d), where n is the number of terms, a is the first term, and d is the common difference. Substituting the given values, we get S = (30/2)(2(1) + (30-1)(3)) = 15(2 + 29(3)) = 15(2 + 87) = 15(89) = 1335. Therefore, the sum of the first 30 terms is 1335.

Submit
163. T h e space K s p space o f space A g C l space i s space 2.0 space x space 10 to the power of negative 10 end exponent m o l squared. d m to the power of negative 6 end exponent. T h e space m a x i m u m space c o n c e n t r a t i o n space o f space A g space to the power of plus 1 end exponent i o n apostrophe s space i n space t h e space s o l u t i o n space i s colon

Explanation

not-available-via-ai

Submit
164. If the roots of the quadratic equation 5 space x squared space minus P x space space plus 1 space equals 0 are real and distinct then

Explanation

If the roots of a quadratic equation are real and distinct, it means that the equation has two different solutions. This implies that the discriminant, which is the expression inside the square root in the quadratic formula, is positive. When the discriminant is positive, the quadratic equation will have two real and distinct roots. Therefore, the correct answer is that "None of Given" options are applicable.

Submit
165. No. of triangles formed by joining 6 non-collinear points is

Explanation

The number of triangles formed by joining 6 non-collinear points can be calculated using the formula nC3, where n is the number of points. In this case, we have 6 points, so the calculation would be 6C3 = 6! / (3! * (6-3)!) = 6! / (3! * 3!) = (6 * 5 * 4) / (3 * 2 * 1) = 20. Therefore, the correct answer is 20.

Submit
166. An A.C of rms value of 4 A and a D.C current 1 flowing through identical resistors dissipate heat at the same rate then value of 1 will be:

Explanation

If the alternating current (A.C) of rms value 4 A and the direct current (D.C) of 1 A flowing through identical resistors dissipate heat at the same rate, it means that the power dissipated in both cases is equal. The power dissipated in a resistor can be calculated using the formula P = I^2 * R, where I is the current and R is the resistance. Since the resistors are identical, the resistance will be the same in both cases. If the A.C has an rms value of 4 A, then the peak value of the current is 4 * sqrt(2) = 5.66 A. Therefore, the power dissipated in the A.C case is 5.66^2 * R = 32 * R. For the D.C case, the power dissipated is 1^2 * R = 1 * R. Since the power dissipated is the same in both cases, we can equate the two expressions: 32 * R = 1 * R. Solving for R, we find that R = 1/32. Therefore, the value of 1 (D.C current) is 4 A.

Submit
167. An airplane is flying in a straight line at a constant altitude. If a wind gust strikes and raises the nose of the airplane, the nose will bob up and down until the plane eventually return's to it's original position altitude. Are these oscillation's are:

Explanation

When the nose of the airplane is raised by a wind gust, it causes the airplane to oscillate or bob up and down. The fact that the oscillations eventually return to the original position indicates that they are damped, meaning that they gradually decrease in amplitude over time. However, the fact that the oscillations continue for some time before returning to the original position suggests that they are underdamped, meaning that the damping is not strong enough to quickly bring the airplane back to its original position.

Submit
168. An artificial satellite is orbiting the earth, What can be guess about this artificial Satellite:

Explanation

An artificial satellite orbiting the Earth experiences a constant speed and direction of motion, which means that there is no change in its tangential velocity. Therefore, the tangential acceleration of the satellite is zero. Additionally, since the satellite is in a stable orbit, it maintains a constant distance from the Earth's center, resulting in no change in its angular velocity. Therefore, the angular acceleration of the satellite is also zero. Hence, the correct answer is that both the angular and tangential acceleration of the artificial satellite are zero.

Submit
169. The ratio of angular speed of moon around the Earth to its angular speed about its own axis is :

Explanation

The ratio of the angular speed of the moon around the Earth to its angular speed about its own axis is 1:1. This means that the moon takes the same amount of time to complete one rotation around the Earth as it does to complete one rotation about its own axis. This is why we always see the same side of the moon facing us from Earth.

Submit
170. A 500g tooth paste sample has 0.2 g fluoride concentration. What is the concentration of fluoride in terms of ppm level?

Explanation

The concentration of fluoride in the toothpaste sample is 0.2 g/500 g. To convert this to ppm (parts per million), we need to multiply by 1,000,000. Therefore, the concentration of fluoride in terms of ppm is 0.2 g/500 g * 1,000,000 = 400 ppm.

Submit
171. The formula of washing soda is:

Explanation

The chemical formula of washing soda is Na2CO3. This compound is also known as sodium carbonate and is commonly used as a water softener and cleaning agent. The formula indicates that washing soda is composed of two sodium (Na) atoms, one carbon (C) atom, and three oxygen (O) atoms. The subscript numbers indicate the number of atoms present in each element.

Submit
172. The rate of a reaction in general can be increased by all the following factors except:

Explanation

Increasing temperature generally increases the rate of a reaction. This is because higher temperatures provide more energy to the reactant molecules, causing them to move faster and collide more frequently, leading to a higher chance of successful collisions and therefore an increased reaction rate. Using a suitable catalyst also increases the rate of a reaction by providing an alternative pathway with lower activation energy. Increasing the concentration of reactants also increases the reaction rate by increasing the number of reactant molecules available for collisions. However, an increase in activation energy would actually decrease the reaction rate as it would make it more difficult for the reactant molecules to overcome the energy barrier and initiate the reaction.

Submit
173. Ballet was _____________ delighting the childern with its imaginative characters and unpredictable sets.

Explanation

The word "whimsical" is the correct answer because it means playful, imaginative, and unpredictable. In the given sentence, it is stated that ballet is delighting children with its imaginative characters and unpredictable sets, which aligns with the meaning of "whimsical". Therefore, "whimsical" is the most suitable choice to complete the sentence.

Submit
174. The sum of the focal distances of any point on the ellipse 4 space x squared space plus 16 space y squared equals 64 is:

Explanation

The sum of the focal distances of any point on an ellipse is always equal to the length of the major axis. In this case, since the given options are all integers, the only possible length for the major axis is 16. Therefore, the correct answer is 16.

Submit
175. When two bodies move towards each other with constant speeds, the distance between them decreases at the rate of 6 km/s. If they move in the same direction with the same speeds, the distance between them increases at the rate of 4 km/s. Then their speeds are:

Explanation

When two bodies move towards each other with constant speeds, the rate at which the distance between them decreases is equal to the sum of their speeds. In this case, the rate of decrease is given as 6 km/s. Therefore, the sum of their speeds is 6 km/s.

When the bodies move in the same direction with the same speeds, the rate at which the distance between them increases is equal to the difference of their speeds. In this case, the rate of increase is given as 4 km/s. Therefore, the difference of their speeds is 4 km/s.

By solving these two equations simultaneously, we find that the speeds of the bodies are 5 km/s and 1 km/s.

Submit
176. T h e space s h a p e space o f space S n C l subscript 2 space end subscript m o l e c u l e space i s colon

Explanation

not-available-via-ai

Submit
177. if  A with rightwards harpoon with barb upwards on top equals open square brackets table row 3 row 4 row 9 end table close square brackets space comma space B with rightwards arrow on top equals space open square brackets table row 2 row 4 row 7 end table close square brackets then C o s theta equals?

Explanation

not-available-via-ai

Submit
178. Read the Passage and Answer the Question:Poetry begins in trivial metaphors, petty metaphors, "grace" metaphors, and goes on to the profoundest thinking that we have. Poetry provides the one permissible way of saying one thing and meaning another. People say, "Why don't you say what you mean?" We never do that, do we, being all of us too much poets. We like to talk in parables and in hints and in indirections whether from diffidence or some other instinct.What selection best describes the word "diffidence"  as used in the passage?

Explanation

The word "diffidence" in the passage refers to a reluctance or hesitation to speak directly or assertively. This is evident from the statement "We like to talk in parables and in hints and in indirections whether from diffidence or some other instinct." This suggests that people prefer to communicate indirectly or subtly, possibly due to reservations or a lack of confidence in expressing themselves directly. Therefore, the best selection that describes the word "diffidence" in the passage is "reservations."

Submit
179. The first excitation energy of H atom will be:

Explanation

The first excitation energy of the hydrogen atom refers to the energy required to promote an electron from its ground state to the first excited state. This energy can be calculated using the Rydberg formula, which is given by E = -13.6 eV / n^2, where n is the principal quantum number. By substituting n = 2 into the formula, we find that the first excitation energy is 10.2 eV. Therefore, the correct answer is 10.2 eV.

Submit
180. The six strings of a guitar are the same length under nearly the same tension, but they have different thickness. On which string do waves travel the fastest?

Explanation

The speed of a wave is determined by the medium through which it travels. In this case, the medium is the string of the guitar. Thicker strings have a higher density, which means that the particles in the string are closer together. This results in a higher speed of sound waves traveling through the thicker string compared to the thinner strings. Therefore, waves travel the fastest on the thickest string.

Submit
181. limit as x rightwards arrow 0 of space fraction numerator e to the power of x minus e to the power of negative x end exponent over denominator sin space x end fraction=?

Explanation

not-available-via-ai

Submit
182. The value of p for which the roots of the equation 3 space x squared space minus space left parenthesis p squared space minus 8 right parenthesis x space plus space 47 space equals space 0 are additive inverse of each other is,

Explanation

The equation given is a quadratic equation. The roots of a quadratic equation are additive inverses of each other when the sum of the roots is equal to zero. In other words, the coefficient of the linear term (p) should be equal to the negative of the constant term (8). Therefore, the value of p that satisfies this condition is -8.

Submit
183. Let UDOMETER is coded as DUMOTERE then how will SUBLEASE be coded?

Explanation

The given question follows a pattern where the first and last letters of the word are interchanged, and the middle letters remain the same. Applying this pattern to the word "SUBLEASE," we get "USBAELES." Therefore, the correct answer is "USBAELES."

Submit
184. The secretary ______ agreed to ______ the president's decision, knowing that the information was less than factual and against her basic beliefs regarding deceptive sales practices.

Explanation

The correct answer is "grudgingly... abide by". This means that the secretary reluctantly accepted and followed the president's decision, even though she did not agree with it. The word "grudgingly" indicates a sense of reluctance or unwillingness, while "abide by" means to accept or follow a decision or rule.

Submit
185. straight pi equals

Explanation

not-available-via-ai

Submit
186. fraction numerator 7 over denominator x plus 7 end fraction minus fraction numerator 3 over denominator x plus 3 end fraction are the partial fractions of:

Explanation

not-available-via-ai

Submit
187. The C-H bond distance is the longest in:

Explanation

The C-H bond distance is the longest in methane (CH4) because it is a single bond between carbon and hydrogen atoms. In other compounds like ethane (C2H6) or ethene (C2H4), the carbon atoms are bonded to each other, resulting in shorter C-H bond distances. Similarly, in compounds like benzene (C6H6) or cyclohexane (C6H12), the carbon atoms are part of a ring structure, leading to shorter C-H bond distances compared to methane.

Submit
188.  The angle between the asymptotes of the hyperbola x squared over a squared minus y squared over b squared equals space 1 is:

Explanation

The angle between the asymptotes of a hyperbola is always equal to the angle between the conjugate axes of the hyperbola. This is because the asymptotes are lines that pass through the center of the hyperbola and intersect the vertices of the hyperbola. The conjugate axes are the axes that are perpendicular to the transverse axes of the hyperbola and pass through the center. Therefore, the angle between the asymptotes is equal to the angle between the conjugate axes.

Submit
189. A body of mass  of 2 kg absorbed 10j of radioactive radiations then absorbed dose of radiation in rad is 

Explanation

The absorbed dose of radiation is a measure of the energy absorbed per unit mass of the body. In this case, a body with a mass of 2 kg absorbed 10 J of radiation. To calculate the absorbed dose in rad, we need to divide the energy absorbed (10 J) by the mass of the body (2 kg). This gives us a result of 5 J/kg, which is equal to 500 rad. Therefore, the correct answer is 500.

Submit
190. When A and B are perpendicular to each other then magnitude of A x B is equal to:

Explanation

When two vectors A and B are perpendicular to each other, their cross product (A x B) will result in a vector with magnitude equal to the product of the magnitudes of A and B. In this case, the cross product magnitude will be equal to the product of the lengths of the sides of the rectangle, which represents the area of the rectangle. Therefore, the correct answer is "Area of Rectangle".

Submit
191. The maximum number of electrons with n:3 and L:2 is

Explanation

The maximum number of electrons with n:3 and L:2 is 10. This is because the value of n represents the principal quantum number, which indicates the energy level of an electron. The value of L represents the azimuthal quantum number, which indicates the shape of the electron's orbital. For n:3 and L:2, the possible values for the magnetic quantum number (m) range from -2 to +2. According to the Pauli exclusion principle, each orbital can accommodate a maximum of 2 electrons with opposite spins. Therefore, for L:2, there are a total of 5 orbitals (m values), which can accommodate a maximum of 10 electrons (2 electrons per orbital).

Submit
192. The radiation from a naturally occurring radioactive substance, as seen after deflection by a magnetic field in one direction, are:

Explanation

The deflection of radiation by a magnetic field in one direction indicates that the radiation is composed of positively charged particles. Alpha particles are positively charged, so they can be deflected in a magnetic field. Therefore, the correct answer is definitely a-rays.

Submit
193. Mitigate means _______________:

Explanation

Mitigate means to reduce, lessen, or make something less severe or intense. It is the opposite of aggravate, which means to make something worse or more intense. Attenuate, the correct answer, means to weaken or reduce the force, intensity, or severity of something. Therefore, attenuate is the most appropriate word that aligns with the meaning of mitigate. Contemplate means to think about or consider, and virulent means extremely harmful or poisonous.

Submit
194.  I U P A C space n a m e space f o r space left square bracket P t C l B r left parenthesis N O subscript 2 right parenthesis left parenthesis N H subscript 3 right parenthesis subscript 3 right square bracket C l ?

Explanation

The correct answer is "Triammine chlorobromonitro platimum (iv) Chloride". This is because the compound is a coordination complex of platinum with a central platinum atom bonded to triammine (NH3) ligands, a chloro (Cl) ligand, a bromo (Br) ligand, and a nitro (NO2) ligand. The roman numeral IV indicates that the platinum ion has a +4 oxidation state. The chloride ion (Cl-) is present as a counterion to balance the charge of the complex.

Submit
195. If the middle term in the expansion of open parentheses k over 2 plus 2 close parentheses to the power of 8is 1120 then k=?

Explanation

The middle term in the expansion of a binomial expression is given by the formula (n+1)/2. In this case, the middle term is 1120, so we can set up the equation (n+1)/2 = 1120. Solving for n, we find that n = 2239. Since the exponent of the second term is negative, the value of k is -2.

Submit
196. How much more thumb pressure must a nurse use to administer an injection with a hypodermic needle of inside diameter 0.30 mm compared to one with inside diameter 0.60 mm? Assume that the two needles have the same length and that the volume flow rate is the same in both cases.

Explanation

The pressure required to administer an injection is directly proportional to the resistance of the needle. The resistance is inversely proportional to the fourth power of the radius of the needle. Since the inside diameter of the first needle is half of the second needle, the radius of the first needle is also half of the second needle. Therefore, the resistance of the first needle is 16 times greater than the second needle (2^4 = 16). Hence, the nurse must use 16 times more thumb pressure to administer an injection with the first needle compared to the second needle.

Submit
197. Her ______ demeanor was understandable given the loss of her brother; indeed, most of us were rather ______.

Explanation

The correct answer is lachyromose. . . dolorous. The word "lachyromose" means tearful or mournful, while "dolorous" means expressing or causing sorrow or pain. Given the loss of her brother, it is understandable that her demeanor would be tearful or mournful, and it is likely that most of the people around her would also be feeling sorrow or pain.

Submit
198. As a projectile thrown upward moves in its parabolic path. At what point along its path are the velocity and acceleration vectors for the projectile perpendicular to each other?

Explanation

The velocity and acceleration vectors for a projectile are never perpendicular to each other. This is because the acceleration vector of a projectile is always directed downward due to the force of gravity, while the velocity vector changes direction as the projectile moves along its parabolic path. Therefore, at no point along its path are the velocity and acceleration vectors perpendicular to each other.

Submit
199. When ethylene ozonide is treated with Zn-dust we get:

Explanation

When ethylene ozonide is treated with Zn-dust, it undergoes a reductive cleavage reaction, resulting in the formation of methanal (also known as formaldehyde). Methanal is an aldehyde that is formed when the ozonide bond is broken, and it is the correct product in this reaction.

Submit
200. Slope of a Circle x squared plus space y squared equals 4 at a point P making an inclination 45 degree is : 

Explanation

The slope of a circle at a point P making an inclination of 45 degrees is -1. This means that the tangent line to the circle at point P is perpendicular to the line that makes a 45-degree angle with the x-axis. Since the slope of a line perpendicular to a line with slope m is the negative reciprocal of m, the slope of the tangent line is -1.

Submit
View My Results

Quiz Review Timeline (Updated): Jan 9, 2025 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Jan 09, 2025
    Quiz Edited by
    ProProfs Editorial Team
  • Feb 13, 2015
    Quiz Created by
    Ejazmoaz
Cancel
  • All
    All (200)
  • Unanswered
    Unanswered ()
  • Answered
    Answered ()
Which word does not belong to the group in each of the following...
If U is a variable , V is a constant then 
If a set A has 3 elements and B has 6 elements such that  ...
 A x B = B x A iff _______________
Identity element in set of rational number w.r.t multiplication is
At which of the following places, motion of simple pendulum becomes...
If then =?
=?
If 
Identify Which  do not possess the same kind of meaning as the...
A logic gate has four inputs, its possible input combination will be:
Equation of SHM, with amplitude 'a' is given by:
If A and B are two Matrices then they can be added if
Are the partial fractions of:
Sum of squares of conjugate complex number is?
The contra positive of    is
Odd one Out:
Let an emf of 120 volt of negligible internal resistance connected...
An electron is moving along the axis of a solenoid carrying a current...
?
If  then x=?
If  then  = ?
Set of cube root of unity is a group w.r.t :
His credulous nature often landed him in touble
The sum of three numbers in AP is 15 and their product is 80. The...
If a is a recurring decimal fraction, then 2a-3 is?
The midpoints of a set of parallel chords of an ellipse are:
When the output power equals to one-half of the input power,...
Which Graph in SHM show K.E of body:
Hydrocarbons which burn with smoky flame are called:
 when expressed in terms of trigonometric functions of multiples...
As  temperature of the black body is raised the black body...
If A and B are square matrices of same order, then  if
A maintenance crew is working on a section of a three-lane highway...
To double the total energy for a mass spring system oscillating in...
Voracious means __________.
DISSENSION has the same meaning as ________________
Choose the correct one:
The value of       is
Which of following is a comer point of the system of linear...
Period of cos (3x + 7)=?
100 + 11  =  32111  + 1000 = 43100 + 100 = ?
Equation of displacement of a body executing SHM is . Which of...
If f(x) =  |x| + [x] then f(-2.5) =?
The 7th Term from the end in the expansion of    is
The sum of 15 terms of an A.P is 600 their common difference is 5 then...
Two points charges of +5 C and -12 C attract each other with...
=
The parade route was down the main boulevard. 
At very high frequency of A.C through RLC series circuit, the circuit...
The ratio of dimension of Power to the dimension of Angular Momentum...
In Beta elimination reaction , nucleophile attacks on:
?
Which compound shows maximum hydrogen bonding with water:
Which of the following gas is more ideal at STP:
Identify Correct One:
   then x =?
For ,  =?
If  then x=?
Number  in polar form is:
One side of a square is 10 cm. The mid points of its sides arc joined...
A man walks 3 km northwards and then turns left and goes 2 km. He...
The essential condition for Optically Activity of an organic-compound...
Eccentricity is equal to infinity for 
The boy was incorrigible  and a constant source of trouble...
A square coil of side 16 cm has 200 turns and rotates in a uniform...
Most of the mass of fly wheel is concentrated at its rim so as to...
The number of LED segments used in a Calculator Display:
If foci of an ellipse concide,then
Two meters high cylinder containing water is hit by four bullets of...
An element M forms a hydride  which contains 90% of M by...
Equation (x+a)(x+b)(x+c)(x+d)=k is reduced to quadratic equation...
Identify the function of the Graph given below:
Find the missing number in the Box Given Below:
A light and a heavy body have equal momentum, which one has greater...
A small drop falls from a height "h" in air. The final...
A two Kg body and a 3 Kg body have equal momentum. If the Kinetic...
Which of the following has maximum Hydration power :
Which of the following has the maximum no of unpaired electrons?
If  then x=?
According to equation, , the value of x after 4 seconds is:
If  speed of the coil in A.C generator is doubled the r.m.s value...
Which of the Following Represent tanθ ?
A long solenoid has 20 turns/cm, the current necessary to produce a...
Two spheres of the same size, one of mass 5 kg and other of mass 50 g...
Basicity of  is :
Condition that roots of equation  differ by unity is:
Constant function cannot be parallel to:
Which of the following contain's the co-ordinate covalent bond?
The range of the function 
According to Einstein bodies and Light rays follow:
What is the mass of same no of atoms of potassium as are present in...
The coordinates of the foci of the hyperbola 
The range of 
If power dissipated by an A.C circuit is 50 W and power supplied to...
When an observer move with velocity of light relative to a timing...
A man is standing in front of a building at a distance 140 m. The...
A zip code contains 5 digits. How many different zip codes can be made...
The closest point to the focus of  is
An electron describes a circular orbits of radius 2 cm in a uniform...
If a body is moving with acceleration 10 m/ starting from rest,...
The % uncertainty for value of V and I is 2 % and 6%...
There resistors each of one ohm are connected to form a triangle. The...
Which one has proper use of preposition?
Suppose in a certain language  MADRAS is coded as NBESBT. Then...
The radius of a planet is twice than earth's and its mass is half...
Waves used for radio transmission have wavelength :
Ninhydrin reacts with amino acid to form product which has colour:
If the angle of the triangle are in the ratio 1:2:3 then the sides are...
Given Below is a Paragraph. Read it  and Answer the Question:I...
Football players, generally known for their elevated testosterone...
The number of numbers between 1 and 1000 having at least one 3 is
Which of the following lines is a normal to the circle  ?
Two resistances   and  are connected in series...
When one of the following particles projected perpendicular to a...
A perfect cubical die is rolled, the probability of getting an even...
Equation  has:
A body released from a height takes time to reach earth's surface....
An A.C emf of V=200 sin (100πt) volt is concerned to a choke of...
In the Formula of Velocity of Efflux  , h is the:
Which is the most accurate statement of the Bernoulli's principle?
What is the missing number in the triangle on the right?
An electron has angular momentum  js in nth shell of h atom...
In RLC series circuit at resonance the voltage across R, L and C ...
The mass of alpha-particle is :
When brakes of a car are applied, angular velocity of a flywheel...
Both ionic and covalent bonds are present in:
If one root of the equation  is double of the other:
The large hand of a clock is 3 feet long. How many inches does its...
For a radioactive element, the percentage of decade nuclei after 3...
Ne do you like?
The vapour pressure of water at room temperature is 23.8mm Hg. The...
Which one is not related with evaporation?
 
Line  is normal to the circle  under the condition
Shakespeare, a (an) _________________ writer, entertained audiences by...
The number of sigma and pi bonds in l-butene-3-yne?
If the vectors  and  are perpendicular to each...
Choose the best match According to given relation:     ...
Tire sum of integers from 1 to 100 that are divisible by 2 or 5 :
If  EXPLAINING is written as PXEALNIGNI. Then PRODUCED is written...
A disc, a hoop and a sphere of same mass and radius are rolled down...
If the length of a second's pendulum is L, then the length of...
Point Out the correct one:
If the co-efficient of  and  in the expansion of  are...
The chess master promised to _____________ havoc upon his...
Mongoose : mammal :: granite : _____________
The third term of an A.P. is 7 and the 7th term exceeds three times...
If the roots of the quadratic equation  are real and distinct...
No. of triangles formed by joining 6 non-collinear points is
An A.C of rms value of 4 A and a D.C current 1 flowing through...
An airplane is flying in a straight line at a constant altitude. If a...
An artificial satellite is orbiting the earth, What can be guess about...
The ratio of angular speed of moon around the Earth to its angular...
A 500g tooth paste sample has 0.2 g fluoride concentration. What...
The formula of washing soda is:
The rate of a reaction in general can be increased by all the...
Ballet was _____________ delighting the childern with its imaginative...
The sum of the focal distances of any point on the...
When two bodies move towards each other with constant speeds, the...
If   then ?
Read the Passage and Answer the Question:Poetry begins in trivial...
The first excitation energy of H atom will be:
The six strings of a guitar are the same length under nearly the same...
=?
The value of p for which the roots of the equation  are...
Let UDOMETER is coded as DUMOTERE then how will SUBLEASE be...
The secretary ______ agreed to ______ the president's decision,...
 are the partial fractions of:
The C-H bond distance is the longest in:
 The angle between the asymptotes of the hyperbola  is:
A body of mass  of 2 kg absorbed 10j of radioactive radiations...
When A and B are perpendicular to each other then magnitude of A...
The maximum number of electrons with n:3 and L:2 is
The radiation from a naturally occurring radioactive substance, as...
Mitigate means _______________:
 
If the middle term in the expansion of is 1120 then k=?
How much more thumb pressure must a nurse use to administer an...
Her ______ demeanor was understandable given the loss of her...
As a projectile thrown upward moves in its parabolic path. At...
When ethylene ozonide is treated with Zn-dust we get:
Slope of a Circle  at a point P making an inclination 45...
Alert!

Advertisement