Physics Questions Practice Question and Answer
8 4 Q:
5f35fbb6122f0b4ab91b5688 4 Q:
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64c3967e29beb3482a3bcc75 Answer : 1. "6 Ω"
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5f2cdd33be9f31290fb7ca73 4 Q:
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Q: The separation of cream from milk by churning is due to
1750 05f35fbb6122f0b4ab91b5688
5f35fbb6122f0b4ab91b5688- 1Cohesive forcefalse
- 2Centrifugal forcetrue
- 3Gravitational forcefalse
- 4None of the abovefalse
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Answer : 2. "Centrifugal force "
Q: Household appliances based on thermal effect of electric current is-
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5f8fecaa9e18f97b703a48b3- 1Electric heaterfalse
- 2Electric bulbfalse
- 3Tubelightfalse
- 4All of the abovetrue
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Answer : 4. "All of the above"
Q: A light bulb working on an 18 V battery draws a current of 3 A. What will be the resistance of the bulb?
1649 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: Stands in front of the driver of the motor vehicle?
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5f6da9c95256e8407c2ebe13- 1concave mirrorfalse
- 2plane mirrorfalse
- 3convex mirrortrue
- 4Othersfalse
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Answer : 3. "convex mirror"
Q: The substance which conducts current in the solid state is –
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5f2cdd33be9f31290fb7ca73- 1iodinefalse
- 2sodium chloridefalse
- 3diamondfalse
- 4graphitetrue
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Answer : 4. "graphite "
Q: Who invented electromagnetic theory?
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5f06f28a3f7f070477964316- 1Thomas Alva additionfalse
- 2J. J. Thomsonfalse
- 3Michael Faradaytrue
- 4None of thesefalse
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Answer : 3. "Michael Faraday "
Q: Light year is the unit of measurement of
1600 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: The velocity of sound in air is approx.
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5f0ff47c4e2c7631e439119f- 1340 m / sfalse
- 2330 m / strue
- 3110 m / sfalse
- 4232 m / sfalse
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Answer : 2. "330 m / s"
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