| 1 |
How does sound travel from its source to your ear? |
- A. Byc changes in air pressure
- B. By vibration in wires or strings
- C. By electromagnetic waves
- D. By infrared waves
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| 2 |
<p class="MsoNormal">At mean position of pendulum, the potential energy of the
pendulum is:<o:p></o:p></p> |
- A. <p class="MsoNormal">Maximum<o:p></o:p></p>
- B. <p class="MsoNormal">Minimum<o:p></o:p></p>
- C. <p class="MsoNormal">Much more<o:p></o:p></p>
- D. <p class="MsoNormal">Both a and c<o:p></o:p></p>
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| 3 |
Sound waves are an example of: |
- A. Transverse waves
- B. Electromagnetic waves
- C. Longitudinal waves
- D. All of these
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| 4 |
<p class="MsoNormal">What is fitted in telephone receiver:<o:p></o:p></p> |
- A. <p class="MsoNormal">Electromagnet<o:p></o:p></p>
- B. <p class="MsoNormal">Diaphragm<o:p></o:p></p>
- C. <p class="MsoNormal">Both a and b<o:p></o:p></p>
- D. <p class="MsoNormal">None<o:p></o:p></p>
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| 5 |
To hear echo, the distance between the observer and the obstacle is 17m then how much distance will the sound travel? |
- A. 60m
- B. 54m
- C. 17m
- D. 34m
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| 6 |
<p class="MsoNormal">If the displacement in spring is ‘x’ of mass “m” attached
with a spring then restoring force is:<o:p></o:p></p> |
- A. <p class="MsoNormal">F=ma<o:p></o:p></p>
- B. <p class="MsoNormal">F=kx<o:p></o:p></p>
- C. <p class="MsoNormal">F=-kx<o:p></o:p></p>
- D. <p class="MsoNormal">F= m/a<o:p></o:p></p>
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| 7 |
<p class="MsoNormal">Diffraction of wave can be observed clearly only when the
size of slit or obstacle is nearly ………. To the wavelength of the wave:<o:p></o:p></p> |
- A. <p class="MsoNormal">Two times<o:p></o:p></p>
- B. <p class="MsoNormal">Equal<o:p></o:p></p>
- C. <p class="MsoNormal">Four times<o:p></o:p></p>
- D. <p class="MsoNormal">Half<o:p></o:p></p>
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| 8 |
<p class="MsoNormal">The energy is transferred from one place of another:<o:p></o:p></p> |
- A. <p class="MsoNormal">through matter<o:p></o:p></p>
- B. <p class="MsoNormal">through waves<o:p></o:p></p>
- C. <p class="MsoNormal">both a and b<o:p></o:p></p>
- D. <p class="MsoNormal">through vacuum<o:p></o:p></p>
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| 9 |
The example of shock absorber of the vehicles are: |
- A. Simple harmonic motion
- B. <p class="MsoNormal">Vibratory motion<o:p></o:p></p>
- C. <p class="MsoNormal">Damped motion<o:p></o:p></p>
- D. <p class="MsoNormal">Linear motion<o:p></o:p></p>
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| 10 |
<p class="MsoNormal">The disturbance travelling in a medium is called:<o:p></o:p></p> |
- A. <p class="MsoNormal">Wave motion<o:p></o:p></p>
- B. <p class="MsoNormal">Simple harmonic motion<o:p></o:p></p>
- C. Motion
- D. both a and b
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