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Physics MCQ Questions Answers General Knowledge Set

Physics GK Questions Answer – General Knowledge MCQ 

Practice Set Number

PRACTICE SET – Series 2 

1) Number of basic SI unit is:

a) 4

b) 7

c) 6

d) 5

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2) Which of the following is not the unit of energy:

a) Calorie

b) Joule

c) Electron volt

d) Watt

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3) Light year is unit of:

a) time

b) Speed of light

c) distance

d) mass

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4) Which of the following is the example of ideal black body

a) kajal

b) black board

c) a pin hole box

d) none of these

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5)The best conductor of heat among the following is-

a) Alcohol

b) Mercury

c) Ether


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6) The rest mass of a photon is

a) very small

b) very large

c) zero

d) dependent on velocity

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7) The zero layer in the atmosphere is at a height of about

a) 25km

b) 50 km

c) 100km

d) 200km

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8) Dioptere is the unit of—

a) power of a lens

b) focal length of a lens

c) light intensity

d) sound intensity

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9) The unit of luminous efficiency of an electric bulbs is

a) watt

b) lumen

c) lux

d) lumen/watt

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10) What is the maximum number of different electrical combination possible with three equal resistances?

a) 2

b) 3

c) 4

d) 5

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