Physics Practice Question and Answer
8 4 Q:
5fe41bea438750744e325552 4 Q:
60b4b2a67cb636175d3d0592 4 Q:
61655a8fd881f96172321665 4 Q:
60826bbf60a06a7ffdaa7336 4 Q:
63c8f650be373f6c954abbda Answer : 1. "It is halved"
4 Q:
61655ebe3d260361529b137f 4 Q:
62e9fd23ceafbe581b747c99 4 Q:
6137474b576b113a3f9cd690
Q: The device for generating current is called?
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5fe41bea438750744e325552- 1ammeterfalse
- 2Galvanometerfalse
- 3generatortrue
- 4meterfalse
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Answer : 3. "generator"
Q: Which of the following is renewable energy?
1558 160b4b2a67cb636175d3d0592
60b4b2a67cb636175d3d0592- 1Coalfalse
- 2Solar energytrue
- 3Natural Gasfalse
- 4Petrolfalse
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Answer : 2. "Solar energy"
Q: An object weights the maximum in:
1557 061655a8fd881f96172321665
61655a8fd881f96172321665- 1Hydrogenfalse
- 2Vacuumtrue
- 3Airfalse
- 4Waterfalse
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Answer : 2. "Vacuum "
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?
1556 060826bbf60a06a7ffdaa7336
60826bbf60a06a7ffdaa7336- 1187.5 Jfalse
- 217.5 Jfalse
- 3162.5 Jtrue
- 4162.5 msfalse
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Answer : 3. "162.5 J"
Q: The observer hears a sound from the source which is moving away from the observer who is stationary. Determine the frequency of the sound
1555 063c8f650be373f6c954abbda
63c8f650be373f6c954abbda- 1It is halvedtrue
- 2It remains the samefalse
- 3It reaches infinityfalse
- 4It gets doubledfalse
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Answer : 1. "It is halved"
Explanation :
If the observer is moving away from the source ((Figure)), the observed frequency can be found: λs=vTo−voTovTs=(v−vo)Tov(1fs)=(v−vo)(1fo)fo=fs(v−vov).
Q: The measure of inductance is
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61655ebe3d260361529b137f- 1Henrytrue
- 2Ohmfalse
- 3Amperefalse
- 4Coulombfalse
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Answer : 1. "Henry "
Q: What is the unit of the physical quantity "Inductance"?
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62e9fd23ceafbe581b747c99- 1weberfalse
- 2faradfalse
- 3henrytrue
- 4teslafalse
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Answer : 3. "henry"
Q: Which of the following produces more flame?
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6137474b576b113a3f9cd690- 1Steamtrue
- 2hot airfalse
- 3Sun raysfalse
- 4All thesefalse
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Answer : 1. "Steam"
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