Physics Practice Question and Answer
8 4 Q:
6137474b576b113a3f9cd690 4 Q:
6066cbdb2b4b7e646bfc893a 4 Q:
5fe41bea438750744e325552 4 Q:
60892b3c0ac1df7d9f80ef4b 4 Q:
62e9fd23ceafbe581b747c99 4 Q:
60b4b2a67cb636175d3d0592 4 Q:
63c8f650be373f6c954abbda Answer : 1. "It is halved"
4 Q:
60b4b816f2c446136b8b757d
Q: Which of the following produces more flame?
1476 16137474b576b113a3f9cd690
6137474b576b113a3f9cd690- 1Steamtrue
- 2hot airfalse
- 3Sun raysfalse
- 4All thesefalse
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Answer : 1. "Steam"
Q: Pressure is measured in terms of
1473 06066cbdb2b4b7e646bfc893a
6066cbdb2b4b7e646bfc893a- 1Mass and Densityfalse
- 2Work donefalse
- 3Force and Areatrue
- 4Force and Distancefalse
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Answer : 3. "Force and Area"
Q: The device for generating current is called?
1471 05fe41bea438750744e325552
5fe41bea438750744e325552- 1ammeterfalse
- 2Galvanometerfalse
- 3generatortrue
- 4meterfalse
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Answer : 3. "generator"
Q: In case of negative work the angle between the force and displacement is-
1470 060892b3c0ac1df7d9f80ef4b
60892b3c0ac1df7d9f80ef4b- 10°false
- 245°false
- 390°false
- 4180°true
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Answer : 4. "180°"
Q: What is the unit of the physical quantity "Inductance"?
1470 062e9fd23ceafbe581b747c99
62e9fd23ceafbe581b747c99- 1weberfalse
- 2faradfalse
- 3henrytrue
- 4teslafalse
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Answer : 3. "henry"
Q: Which of the following is renewable energy?
1469 160b4b2a67cb636175d3d0592
60b4b2a67cb636175d3d0592- 1Coalfalse
- 2Solar energytrue
- 3Natural Gasfalse
- 4Petrolfalse
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Answer : 2. "Solar energy"
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
1468 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 unit of work is
1467 160b4b816f2c446136b8b757d
60b4b816f2c446136b8b757d- 1Wattsfalse
- 2Jouletrue
- 3Newtonfalse
- 4amperefalse
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Answer : 2. "Joule"
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