Daily Updates Mock Test 62

50 Questions | Attempts: 195
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    The highest temperature attained by a super conductor is- 

    • 24 K
    • 138 K
    • 150 K
    • 300 K
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About This Quiz

MOCK TEST 62
SYLLABUS :PHYSICS
TIME : 20 MINUTES FULL MARKS : 50*5 = 250
EACH QUESTION CARRIES 5 MARKS , - VE MARKING = - 1 / WRONG ANSWER
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Daily Updates Mock Test 62 - Quiz

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  • 2. 

    The ozone layer absorbs

    • Infrared radiation

    • Microwaves

    • Radio wave

    • Ultraviolet rays

    Correct Answer
    A. Ultraviolet rays
  • 3. 

    The resistance of a semiconductor on heating 

    • Remains

    • Decreases

    • Increases

    • None of the above

    Correct Answer
    A. Decreases
  • 4. 

    The earth’s magnetic field is due to 

    • Currents circulating inside the core

    • Presence of a huge magnet at is centre

    • Moving charges in space outside

    • None of the above

    Correct Answer
    A. Currents circulating inside the core
  • 5. 

    Which of the following option represents the consumption of power in ascending order-

    • Television, fan, electronic press, electronic kettle

    • Television, fan, electronic kettle, electronic press

    • Fan, television, electronic press, electronic kettle

    • Electronic press, electronic kettle, fan, television

    Correct Answer
    A. Fan, television, electronic press, electronic kettle
  • 6. 

    How does the white light produce in the tube? 

    • To Heat up the copper wire

    • To Heat up the filament

    • To accelerate the atoms

    • To oscillate molecule

    Correct Answer
    A. To Heat up the filament
  • 7. 

    Full form of C.F.I. is- 

    • Compact Fluorescent Lamp

    • Centrally Fixed Lamp

    • Chemical Fluorescent Lamp

    • Condensed Fluorescent Lamp

    Correct Answer
    A. Compact Fluorescent Lamp
  • 8. 

    A device which converts chemical energy into electrical energy is called-

    • Battery

    • Motor

    • Generator

    • Moving coil meter

    Correct Answer
    A. Battery
  • 9. 

    The filament of bulb is of

    • Mercury

    • Copper

    • Tungsten

    • None of these

    Correct Answer
    A. Tungsten
  • 10. 

    The tolerable limit of noise for human being is around- 

    • 45 decibel

    • 85 decibel

    • 125 decibel

    • 155 decibel

    Correct Answer
    A. 85 decibel
  • 11. 

     What is the decibel level of sound produced by two persons in conversation? 

    • About 5 Decibel

    • About 10 Decibel

    • About 30 Decibel

    • About 100 Decibel

    Correct Answer
    A. About 30 Decibel
  • 12. 

    Maximum temperature inside pressure cooker depends on: 

    • Area of hole on the top and weight kept on it

    • Area of hole on the top and food being cooked

    • Weight kept on hole at top and food being cooked

    • Area of hole on the top only

    Correct Answer
    A. Area of hole on the top and weight kept on it
  • 13. 

     A fan produces feeling of comfort during hot weather, because- 

    • Fan supplies cold air

    • Our perspiration evaporates rapidly

    • Our body radiates more heat

    • Conductivity of air increase

    Correct Answer
    A. Our perspiration evaporates rapidly
  • 14. 

    Xeric condition refers to- 

    • Low temperature

    • Low humidity

    • High evaporation

    • Extreme temperature

    Correct Answer
    A. Low humidity
  • 15. 

    What is absolute zero temperature? 

    • The starting point of any temperature scale

    • Theoretically the lowest possible temperature

    • The temperature at which the vapour of any liquid substance is condensed

    • The temperature at which all material are in vapour form

    Correct Answer
    A. Theoretically the lowest possible temperature
  • 16. 

    Which zone of a candle flame is the hottest? 

    • Dark innermost zone

    • Outermost zone

    • Middle luminous zone

    • Central zone

    Correct Answer
    A. Outermost zone
  • 17. 

    The image of the object that we see, forms on the retina of our eyes is—

    • always erect

    • Always inverted

    • Erect or inverted depends upon the intensity of light

    • Erect or inverted depends upon the age of the person

    Correct Answer
    A. Always inverted
  • 18. 

    Evening Sun is not as hot as the midday sun. What is the reason? 

    • In the evening, radiation travel slowly

    • In the evening, the temperature of the sun decreases

    • Ozone in atmosphere absorbs more light in the evening

    • In the evening, radiations travel larger distance through atmosphere

    Correct Answer
    A. In the evening, radiations travel larger distance through atmosphere
  • 19. 

    A body is thrown vertically upwards and then falls back on the ground. When its potential energy is maximum?

    • On the ground

    • At the maximum height

    • During the return journey

    • Both on the ground and at the maximum height

    Correct Answer
    A. At the maximum height
  • 20. 

    The magnet is strongest near the-

    • On equator point from the poles of the magnet

    • Ends of the magnet

    • Centre of magnet

    • None of the above

    Correct Answer
    A. Ends of the magnet
  • 21. 

    A body travelling with a speed of more than the velocity of sound in air is said to travel with— 

    • Supersonic speed

    • Hypersonic speed

    • Ultrasonic speed

    • Infrasonic speed

    Correct Answer
    A. Supersonic speed
  • 22. 

    Which of the special technique is used in ships to calculate the depth of ocean beds?

    • LASER

    • SONAR

    • Sonic boom

    • Reverberation

    Correct Answer
    A. SONAR
  • 23. 

    What is the SI unit of electrical conductance?

    • Volt

    • Watt

    • Siemens

    • Ampere

    Correct Answer
    A. Siemens
  • 24. 

    Which of the following is a conductor of electricity?

    • Silver

    • Copper

    • Aluminium

    • All of the above

    Correct Answer
    A. All of the above
  • 25. 

     Why is tungsten used exclusively for the filament of an incandescent lamp?

    • Tungsten can be drawn into thin wires which in turn offer high resistance

    • Tungsten has a fairly good resistivity

    • The melting point of tungsten is very high

    • All of these

    Correct Answer
    A. All of these
  • 26. 

    Why ammeter is likely to burn out if you connect it in parallel?

    • It has high voltage

    • It has high resistance

    • It has low resistance

    • It has low voltage

    Correct Answer
    A. It has low resistance
  • 27. 

    What will happen to current passing through a resistor if the potential difference across its ends is doubled and the resistance is halved?

    • Becomes four times

    • Becomes halved

    • Remain unchanged

    • Becomes one fourth

    Correct Answer
    A. Becomes four times
  • 28. 

    Which of the following has the highest refractive index?

    • Glass

    • Water

    • Pearl

    • Diamond

    Correct Answer
    A. Diamond
  • 29. 

    For a plane mirror, magnification (m)=________

    • 0

    • 1

    • ± 1

    • ≤ 0

    Correct Answer
    A. 1
  • 30. 

    We can see objects because of which phenomena?

    • reflection

    • refraction

    • Transmission

    • Diffraction

    Correct Answer
    A. reflection
  • 31. 

    Which has no importance for fuse wire –

    • Specific resistance of wire

    • Diameter of wire

    • Length of wire

    • Current passing through the wire

    Correct Answer
    A. Length of wire
  • 32. 

    The specific resistance of a wire varies with its –

    • Length

    • Cross-section

    • Mass

    • Material

    Correct Answer
    A. Material
  • 33. 

    The unit of specific resistance is –

    • Ohm

    • Ohm–1

    • Ohm-metre

    • Ohm per metre

    Correct Answer
    A. Ohm-metre
  • 34. 

    How many electrons constitute a current of one microampere –

    • 6.25 × 10^6

    • 6.25 × 10^12

    • 6.25 × 10^9

    • 6.25 × 10^15

    Correct Answer
    A. 6.25 × 10^12
  • 35. 

    Good conductors have many loosely bound –

    • Atoms

    • Protons

    • Molecules

    • Electrons

    Correct Answer
    A. Electrons
  • 36. 

    The variable resistance is called –

    • Resistor

    • Rheostat

    • open switch

    • None of these

    Correct Answer
    A. Rheostat
  • 37. 

     If the length of a wire is doubled and its cross-section is also doubled, then the resistance will –

    • Increase eight times

    • Decrease four times

    • Become four times

    • Remain unchanged

    Correct Answer
    A. Remain unchanged
  • 38. 

    Instruments can be shielded from outside magnetic effects by surrounding them with

    • Iron shield

    • Rubber shield

    • Brass shield

    • Glass shield

    Correct Answer
    A. Brass shield
  • 39. 

    The following is a pseudo-force:

    • Centrepetal force

    • Centrifugal reaction force

    • Centrifugal force

    • Strong nuclear force

    Correct Answer
    A. Centrifugal force
  • 40. 

    The hydraulic brake used in automobiles is a direct application of

    • Archimedes’ principle

    • Torricellean law

    • Bernoulli’s Theorem

    • Pascal’s law

    Correct Answer
    A. Pascal’s law
  • 41. 

    Which instrument is used to measure sound under water ?

    • Hygrometer

    • Hygroscope

    • Hypsometer

    • Hydrophone

    Correct Answer
    A. Hydrophone
  • 42. 

    Which instrument is used to measure pressure of gases ?

    • Manometer

    • Machmeter

    • Magnetometer

    • Micrometer

    Correct Answer
    A. Manometer
  • 43. 

    Which instrument is used to measure heat radiation ?

    • Radar

    • Salinometer

    • Refractometer

    • Radio micrometer

    Correct Answer
    A. Radio micrometer
  • 44. 

    Which instrument is used to measure strength of direct current ?

    • Stroboscope

    • Streoscope

    • Tangent Galvanometer

    • Tachometer

    Correct Answer
    A. Tangent Galvanometer
  • 45. 

     K. Macmillan invented

    • Bicycle

    • Barometer

    • Calculating Machine

    • Centigrade Scale

    Correct Answer
    A. Bicycle
  • 46. 

    Thomas Alva Edison invented

    • Cinema

    • Cine Camera

    • Computer

    • Cinematograph

    Correct Answer
    A. Cinematograph
  • 47. 

    Alfred Nobel invented

    • X ray

    • Diesel Engine

    • Dynamite

    • Dynamo

    Correct Answer
    A. Dynamite
  • 48. 

    David Hughes invented

    • Machine Gun

    • Microphone

    • Microscope

    • Motorcycle

    Correct Answer
    A. Microphone
  • 49. 

    Marie and Pierre Curie invented

    • Radio

    • Radium

    • Radar

    • Refrigerator

    Correct Answer
    A. Radium

Quiz Review Timeline (Updated): Mar 21, 2022 +

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  • Current Version
  • Mar 21, 2022
    Quiz Edited by
    ProProfs Editorial Team
  • Sep 12, 2018
    Quiz Created by
    Daily Updates
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