| 1 |
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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| 2 |
<p class="MsoNormal">the number of waves passing through a point in one second is
called:<o:p></o:p></p> |
- A. <p class="MsoNormal">time period<o:p></o:p></p>
- B. <p class="MsoNormal">cycle<o:p></o:p></p>
- C. <p class="MsoNormal">frequency<o:p></o:p></p>
- D. <p class="MsoNormal">amplitude<o:p></o:p></p>
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| 3 |
The speed of sound of water at 25 <sup>o</sup>C is: |
- A. 1530 ms<sup>-1</sup>
- B. 1531 ms<sup>-1</sup>
- C. 1560 ms<sup>-1</sup>
- D. 1570 ms<sup>-1</sup>
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| 4 |
The speed of sound was accurately measured in: |
- A. 1736
- B. 1737
- C. 1738
- D. 1739
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| 5 |
The unit of intensity of sound: |
- A. wm<sup>-1</sup>
- B. wm
- C. wm<sup>-2</sup>
- D. wm<sup>-3</sup>
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| 6 |
The distance between two consecutive compressions or rarefactions in longitudinal waves is called: |
- A. Amplitude
- B. Wavelength
- C. Half wavelength
- D. 1/4 wavelength
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| 7 |
When frequency of sound wave is increased, which of the following decreases?<div>i) Wavelength ii) Period iii) Amplitude</div> |
- A. i only
- B. (iii) only
- C. i and ii only
- D. i and iii only
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| 8 |
<p class="MsoNormal">The waves, which are used to detect the broken bones are
called:<o:p></o:p></p> |
- A. <p class="MsoNormal">Light waves<o:p></o:p></p>
- B. <p class="MsoNormal">x-rays<o:p></o:p></p>
- C. <p class="MsoNormal">sound waves<o:p></o:p></p>
- D. <p class="MsoNormal">both b and c<o:p></o:p></p>
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| 9 |
<p class="MsoNormal">The advantages of electronic mail are:<o:p></o:p></p> |
- A. <p class="MsoNormal">Fast communication<o:p></o:p></p>
- B. <p class="MsoNormal">Cost free service<o:p></o:p></p>
- C. <p class="MsoNormal">More efficient<o:p></o:p></p>
- D. <p class="MsoNormal">All of these<o:p></o:p></p>
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| 10 |
<p class="MsoNormal">Coaxial cable are used to transmit signals:<o:p></o:p></p> |
- A. <p class="MsoNormal">Magnet<o:p></o:p></p>
- B. <p class="MsoNormal">Electric<o:p></o:p></p>
- C. <p class="MsoNormal">Mechanical<o:p></o:p></p>
- D. <p class="MsoNormal">Both mechanical and magnet<o:p></o:p></p>
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