Physics Practice Question and Answer
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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 Newton / kg unit?
1391 05eec7bfe1dab100936f0ce9e
5eec7bfe1dab100936f0ce9e- 1velocityfalse
- 2Gravitational potentialfalse
- 3forcefalse
- 4accelerationtrue
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Answer : 4. "acceleration"
Q: Denmark is called?
1389 060b4b5fbc6545e407514fe55
60b4b5fbc6545e407514fe55- 1Country of Industryfalse
- 2Hydropower Countryfalse
- 3Country of the windstrue
- 4Country of mineral clustersfalse
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Answer : 3. "Country of the winds"
Q: Which among the following is a vector quantity?
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5f43691b09e4377de92ed2c6- 1Heatfalse
- 2Workfalse
- 3Angular momentumtrue
- 4Timefalse
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Answer : 3. "Angular momentum "
Q: In what units can we measure food energy?
1382 160b4bda0c6545e40751521af
60b4bda0c6545e40751521af- 1Joulefalse
- 2caloriestrue
- 3Argfalse
- 4None of thesefalse
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Answer : 2. "calories"
Q: If the resistance of a conductor is doubled , the current gets halved. This is because:
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5ef58969d7fe8173219c639a- 1I=V-Rfalse
- 2$$ I={v\over R}$$true
- 3I=VRfalse
- 4$$ I={R\over V}n$$false
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Answer : 2. "$$ I={v\over R}$$"
Q: When water is heated from 0°C to 4°C, its volume:
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5ee0cf998c4c964f73d9946e- 1first increases then decreasesfalse
- 2remains the samefalse
- 3increasesfalse
- 4decreasestrue
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Answer : 4. "decreases"
Q: Which of the following statements is not correct?
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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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