| 1 |
<p class="MsoNormal">The waves in which particles of the medium vibrate
perpendicular to the direction of waves are:<o:p></o:p></p> |
- A. <p class="MsoNormal">Electromagnetic waves<o:p></o:p></p>
- B. <p class="MsoNormal">Sound waves<o:p></o:p></p>
- C. <p class="MsoNormal">Both a and b<o:p></o:p></p>
- D. <p class="MsoNormal">Transverse waves<o:p></o:p></p>
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| 2 |
<p class="MsoNormal">The waves which travel in straight line through space and
have strong signals are called:<o:p></o:p></p> |
- A. <p class="MsoNormal">Micro waves<o:p></o:p></p>
- B. <p class="MsoNormal">Mechanical waves<o:p></o:p></p>
- C. <p class="MsoNormal">Light waves<o:p></o:p></p>
- D. <p class="MsoNormal">Magnet waves<o:p></o:p></p>
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| 3 |
Which form of energy is sound? |
- A. Electrical
- B. Mechanical
- C. Thermal
- D. Chemical
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| 4 |
Pitch of sound depends upon: |
- A. Frequency
- B. Amplitude
- C. Intensity
- D. Time period
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| 5 |
<p class="MsoNormal">Ripple tank is an instrument which is used to study the
characteristics of:<o:p></o:p></p> |
- A. <p class="MsoNormal">Mechanical waves<o:p></o:p></p>
- B. <p class="MsoNormal">Light waves<o:p></o:p></p>
- C. <p class="MsoNormal">Radio waves<o:p></o:p></p>
- D. <p class="MsoNormal">Electro-magnet waves<o:p></o:p></p>
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| 6 |
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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| 7 |
<p class="MsoNormal">The ration of external force applied on the spring to
displacement is called:<o:p></o:p></p> |
- A. <p class="MsoNormal">Hooke’s law<o:p></o:p></p>
- B. <p class="MsoNormal">Constant<o:p></o:p></p>
- C. <p class="MsoNormal">Spring constant<o:p></o:p></p>
- D. <p class="MsoNormal">Force<o:p></o:p></p>
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| 8 |
<p class="MsoNormal">The product of frequency and time period is equal to:<o:p></o:p></p> |
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| 9 |
For normal person audible frequency range for sound wave lies between. |
- A. 10 Hz and 10KHz
- B. 20 Hz and 20KHz
- C. 25 Hz and 25KHz
- D. 30 Hz and 30KHz
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| 10 |
<p class="MsoNormal">Micro waves are used in:<o:p></o:p></p> |
- A. <p class="MsoNormal">Radio<o:p></o:p></p>
- B. <p class="MsoNormal">Television<o:p></o:p></p>
- C. <p class="MsoNormal">Mobile phone<o:p></o:p></p>
- D. <p class="MsoNormal">All of these<o:p></o:p></p>
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