# Apiiit, Nuzvid

20 Questions  I  By Chprathap
ANSWER THE FOLLOWING QUESTIONS WITH SUITABLE OPTION:

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## Questions and Answers

 1 In the SI system the fundamental quantities are
 A. 3
 B. 5
 C. 7
 D. 6
 2 Candela is the SI unit for
 A. Speed of light
 B. Amount of substance
 C. Luminous intensity
 D. Thermodynamic temperature
 3 Ampere is the SI unit for
 A. Electric flux
 B. Electric charge
 C. Electric capacitance
 D. Electric current
 4 Which of the following is the SI unit for time
 A. Light year
 B. Hour
 C. Minute
 D. Second
 5 " bar " is the unit for
 A. Force
 B. Density
 C. Pressure
 D. Length
 6 Light year is the unit for
 A. Time
 B. Light intensity
 C. Distance
 D. Temperature
 7 The value of 1.84 cubic inches in cubic centimeters
 A. 184
 B. 302
 C. 30.2
 D. 18400
 8 A body moves with a speed of 36 km/hour. Then its speed in m/s
 A. 100
 B. 129.6
 C. 10
 D. 1000
 9 The mass of a solid cube is 856 g and each edge has a length of 5.35 cm. The its density in SI system is
 A. 5.59
 B. 55.9
 C. 559
 D. 5590
 10 Parsec is the unit for
 A. Speed
 B. Time
 C. Distance
 D. Intensity of light
 11 A vehicle moving with a speed of 18 kmph covers.........m in 1 s
 A. 1800
 B. 18
 C. 50
 D. 5
 12 The number of significant figurs in 6.320 J is
 A. 3
 B. 4
 C. 2
 D. 1
 13 The length and breadth  of a rectangular sheet of metal are 4.234 m, 1.005 m, The area of the sheet to correct significant figures
 A. 4.25517
 B. 4.26
 C. 4.255
 D. 4.3
 14 After rounding off the number 4621 to 2 significant digits the value becomes
 A. 4620
 B. 4700
 C. 4600
 D. 4720
 15 The area of a rectangle of size 1.23 cm X 2.345 cm in significant figures is
 A. 2.88435 cm2
 B. 2.884 cm2
 C. 2.9 cm2
 D. 2.88 cm2
 16 What is the percentage error in the measurement of time period of a pendulum if the maximum errors in the measurements of length(l) and g are 2% and 4% respectively
 A. 6%
 B. 4%
 C. 3%
 D. 5%
 17 Which of the folllowing pairs have the same dimensions
 A. Light year and speed of light
 B. Energy and young madulus
 C. Momentum and force
 D. Torque and work
 18 Which of the following numbers have 4 significant figures
 A. 0.009
 B. 1800
 C. 126
 D. 201
 19 The number of significant figures in 0.80010 is
 A. 2
 B. 6
 C. 4
 D. 5
 20 Which of the following numbers shows 1 significant figure
 A. 0.1
 B. 0.0009
 C. 4
 D. 2.31
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