Physics Practice Question and Answer
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Q: One Joule is equal to
1861 05edf02e78c4c964f73d3ad22
5edf02e78c4c964f73d3ad22- 1$$ {10^11}erg$$false
- 2$$ {10^5}erg$$false
- 3$$ {10^3}erg$$false
- 4$$ {10^7}erg$$true
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Answer : 4. "$$ {10^7}erg$$"
Q: The ability to work is called?
1860 05eec7d0c9857693341408e10
5eec7d0c9857693341408e10- 1energytrue
- 2accelerationfalse
- 3Displacementfalse
- 4forcefalse
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Answer : 1. "energy"
Q: Rocket works on the principle of
1852 0613728015ee3b079c605466d
613728015ee3b079c605466d- 1energy conservationfalse
- 2Bernoulli theoremfalse
- 3momentum conservationtrue
- 4none of thesefalse
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Answer : 3. "momentum conservation"
Q: The energy of the Sun is produced by?
1844 0613738ae5ee3b079c605a054
613738ae5ee3b079c605a054- 1by oxidationfalse
- 2by nuclear fissionfalse
- 3by ionizationfalse
- 4by nuclear fusiontrue
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Answer : 4. "by nuclear fusion"
Q: Eye lens is?
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5eec7a75eee45c3b837f8207- 1convergenttrue
- 2Divergentfalse
- 3convex and concavefalse
- 4None of thesefalse
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Answer : 1. "convergent"
Q: What is the S.I unit of lens capacity?
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5f6da6bdec13dd748004e2b2- 1meterfalse
- 2(meter) 2false
- 3dioptertrue
- 4Othersfalse
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Answer : 3. "diopter"
Q: Shakti or Strength is the zodiac?
1827 05eec7cb713d72d584fb83962
5eec7cb713d72d584fb83962- 1Scalartrue
- 2Pradeeshfalse
- 3Vectorfalse
- 4None of thesefalse
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Answer : 1. "Scalar"
Q: Which of the following statements is not correct?
1814 05f8fd438c380c466d4dd1840
5f8fd438c380c466d4dd1840- 1The velocity of sound in air increases as the temperature increases.false
- 2The velocity of sound in air does not depend on pressure.false
- 3The velocity of sound in air decreases with the increase of humidity.true
- 4Noise velocity in air is not affected by change in amplitude and frequency.false
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Answer : 3. "The velocity of sound in air decreases with the increase of humidity."
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