Physics Practice Question and Answer
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Q: We have reason to see the sun a few minutes before the actual sunrise
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5f72e901c0afea20a178e18c- 1Scattering of lightfalse
- 2Diffraction of lightfalse
- 3Total internal reflection of lightfalse
- 4Refraction of lighttrue
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Answer : 4. "Refraction of light"
Q: Is a mirror always a direct reflection of the real object?
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5f6da310ff25c92a085ba817- 1flat, convex, concavefalse
- 2flat, concavefalse
- 3convex-concavefalse
- 4Plain, convextrue
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Answer : 4. "Plain, convex"
Q: The power of a lens is -2.0 D. Here ‘D’ stands for ________.
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60ffbd12d984302df240ac39- 1distancefalse
- 2dilationfalse
- 3dioptretrue
- 4degreefalse
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Answer : 3. "dioptre"
Q: What is the kilowatt hour unit?
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5fe46a8500c5087b4d137b22- 1charge powerfalse
- 2Energytrue
- 3Potential powerfalse
- 4powerfalse
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Answer : 2. "Energy"
Q: The instrument that measures and records the relative humidity of air is:
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6163f15a8c5cc30e6058a74c- 1Hygrometertrue
- 2Hydrometerfalse
- 3Lactometerfalse
- 4Barometerfalse
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Answer : 1. "Hygrometer"
Q: What is the unit of magnetic field?
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5fe45b5600c5087b4d132a05- 1Newtonfalse
- 2Teslatrue
- 3Amperefalse
- 4meterfalse
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Answer : 2. "Tesla"
Q: Which one of the following common devices works on the basis of the principle of mutual induction?
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609399ea402c5862950ea190- 1Tubelightfalse
- 2Transformertrue
- 3Photodiodefalse
- 4LEDfalse
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Answer : 2. "Transformer"
Q: What type of current is obtained from dynamo?
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5fe45b9a00c5087b4d132da3- 1Direct Sectiontrue
- 2alternating currentfalse
- 3both streamsfalse
- 4None of thesefalse
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Answer : 1. "Direct Section"
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