Questions and Answers

Physics Questions and Answers Section 1

1. What are the dimension of latent heat:
A. MLT2 T­2
B. ML­2T­2
C. M0LT­2
D. M0L2 T­2

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M0L2 T­2

2. If a current is passed in a spring it:
A. Get compressed
B. Get expanded
C. Oscillates
D. Remain unchanged

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Answer: Get compressed

3. The unit of surface energy is:
A. Joule
B. Joule/meter2
C. Newton
D. Newton­meter2

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Answer: Joule/meter2<

4. The angular momentum of a body is conserved, if the acting:
A. Force is zero
B. Torque is zero
C. Force is constant
D. Torque is constant

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Answer: Torque is zero

5. A raindrop of radius r falls from a certain height ‘h’ above the ground. The work done by the gravitational force is proportional to:
A. r
B. r2
C. r3
D. r4

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Answer: r3

6. Images formed by a convex spherical mirror is:
A. Virtual
B. Real
C. Enlarged
D. Inverted

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Answer: Virtual

7. Ther rocket works on the principle of:
A. Conservation of energy
B. Conservation of mass
C. Conservation of linear momentum
D. Conservation of angular momentum/

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Answer: Conservation of linear momentum

8. A galvanometer is converted into an ammeter when we connect a:
A. High resistance in series
B. High resistance in parallel
C. Low resistance in series
D. Low resistance in parallel

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Answer: Low resistance in parallel

9. In steady state the temperature of cross section area of a rod, changes with time:
A. Decreased
B. Increased
C. Remain same
D. Firstly decreased then increased

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Answer: Remain same

10. The unit of impulse is the same as that of:
A. Moment of force
B. Linear momentum
C. Rate of change of linear momentum
D. Force

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Answer: Linear momentum
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gksection भारतीय प्रतियोगी परीक्षाओं के लिए एक शिक्षा का ऑनलाइन माध्यम है, जिसके जरिए आप आगामी प्रतियोगी परीक्षाओ की तैयारी कर सकते हो. जीके सेक्शन पोर्टल पर आप परीक्षा सम्बंधित हल किए हुए प्रश्नपत्र एवं सामन्य ज्ञान सम्बंधित सभी विषयों के सवाल और जवाव की जानकारियाँ हिंदी में पढ़ सकते हो, आपकी परीक्षाओं के लिए आपको महत्वपूर्ण परीक्षा सम्बंधित सामग्री एवं महत्वपूर्ण जानकारी प्राप्त कराता है.