Physics Questions Practice Question and Answer
8 4 Q:
64c3967e29beb3482a3bcc75 Answer : 1. "6 Ω"
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6165591ad881f961723211b5 4 Q:
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Q: A light bulb working on an 18 V battery draws a current of 3 A. What will be the resistance of the bulb?
946 064c3967e29beb3482a3bcc75
64c3967e29beb3482a3bcc75- 16 Ωtrue
- 22 Ωfalse
- 34 Ωfalse
- 43 Ωfalse
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Answer : 1. "6 Ω"
Explanation :
An electric bulb running on 18 V battery draws 3A of electric current. The resistance of the bulb will be 6 Ω.
Q: Does the Sun look round at sunrise and sunset?
944 05f6da4f7f9079a64e3c04cbe
5f6da4f7f9079a64e3c04cbe- 1Sphericalfalse
- 2Cubicfalse
- 3Ellipticalfalse
- 4flattrue
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Answer : 4. "flat"
Q: The velocity of sound in the air (vacuum) is:
944 06165591ad881f961723211b5
6165591ad881f961723211b5- 1110 m / secfalse
- 2232 m / secfalse
- 3331 m / sectrue
- 4220 m / secfalse
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Answer : 3. "331 m / sec "
Q: Alum is used as:
938 15f4cd6195e74bc4ee54f565f
5f4cd6195e74bc4ee54f565f- 1a disinfectantfalse
- 2a purifier for watertrue
- 3an analgesicfalse
- 4a fertilizerfalse
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Answer : 2. "a purifier for water "
Q: Which of the following is not a unit of time?
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60b4b8fa7cb636175d3d12f6- 1light yeartrue
- 2leap yearfalse
- 3Moon monthfalse
- 4None of thesefalse
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Answer : 1. "light year"
Q: Light year is the unit of measurement of
932 062565df1ac719c4dd28ac685
62565df1ac719c4dd28ac685- 1the age of the universefalse
- 2very short time - lapsefalse
- 3very high temperaturefalse
- 4very long distancetrue
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Answer : 4. "very long distance "
Q: What is the capacity of a convex lens?
929 05f6da679ec13dd748004e02b
5f6da679ec13dd748004e02b- 1negativefalse
- 2positivetrue
- 3zerofalse
- 4Othersfalse
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Answer : 2. "positive"
Q: Mechanical Energy is:
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5f86a4cdb7ad805e26c17e96- 1The energy release during mechanical work.false
- 2The sum of kinetic energy and the potential energy of an object.true
- 3Equal to the rate of doing work.false
- 4The Energy absorbed during movement of a body.false
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Answer : 2. "The sum of kinetic energy and the potential energy of an object. "
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