Physics Questions Practice Question and Answer
8 Q: What is the unit of the physical quantity "Inductance"?
853 062e9fd23ceafbe581b747c99
62e9fd23ceafbe581b747c99- 1weberfalse
- 2faradfalse
- 3henrytrue
- 4teslafalse
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Answer : 3. "henry"
Q: An object of mass 13 kg is moving with a uniform velocity of 5 ms-1. What is the kinetic energy possessed by the object?
853 060826bbf60a06a7ffdaa7336
60826bbf60a06a7ffdaa7336- 1187.5 Jfalse
- 217.5 Jfalse
- 3162.5 Jtrue
- 4162.5 msfalse
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Answer : 3. "162.5 J"
Q: Is a mirror always a direct reflection of the real object?
851 05f6da310ff25c92a085ba817
5f6da310ff25c92a085ba817- 1flat, convex, concavefalse
- 2flat, concavefalse
- 3convex-concavefalse
- 4Plain, convextrue
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Answer : 4. "Plain, convex"
Q: For an object experiencing weightlessness _____
841 063c7a79dbdbddb32fd9ccd6a
63c7a79dbdbddb32fd9ccd6a- 1its weight force is non-zerofalse
- 2it has inertiatrue
- 3it experiences a value of acceleration greater than the acceleration due to gravityfalse
- 4it experiences a value of acceleration lesser than the acceleration due to gravityfalse
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Answer : 2. "it has inertia"
Q: What type of current is obtained from dynamo?
838 05fe45b9a00c5087b4d132da3
5fe45b9a00c5087b4d132da3- 1Direct Sectiontrue
- 2alternating currentfalse
- 3both streamsfalse
- 4None of thesefalse
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Answer : 1. "Direct Section"
Q: Who is considered as the ultimate source of all forms of energy?
837 060b4b23cc6545e407514f717
60b4b23cc6545e407514f717- 1Coalfalse
- 2Atomfalse
- 3Waterfalse
- 4Suntrue
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Answer : 4. "Sun"
Q: The light is a:
836 061655a273d260361529b02a7
61655a273d260361529b02a7- 1Transverse wavetrue
- 2Longitudinal wavefalse
- 3Bothfalse
- 4Nonefalse
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Answer : 1. "Transverse wave "
Q: A potentiometer is considered a versatile and accurate device to make an electrical measurement of EMF. Why?
836 063c8d7f2bdbddb32fda0219d
63c8d7f2bdbddb32fda0219d- 1Because the method involves a combinationfalse
- 2There are cells involvedfalse
- 3Because of potential gradientsfalse
- 4As there is no flow of current through the galvanometertrue
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Answer : 4. "As there is no flow of current through the galvanometer"
Explanation :
A potentiometer is an accurate and versatile device to make electrical measurements of emf because the method involves a condition of no current flow through the galvanometer, the device can be used to measure potential difference, internal resistance of a cell and compare emf's of two sources. Q.