| 1 |
The sound level of rustling of leave is: |
- A. 1 dB
- B. 20 dB
- C. 30 dB
- D. 10 dB
|
| 2 |
If the intensity of faintest audible sound is Io and of another sound is I then sound level will be: |
- A. K log Io/I
- B. Log Io/I 2K
- C. K log Io/I2
- D. K log I/Io
|
| 3 |
<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>
|
| 4 |
The unit of intensity of sound: |
- A. wm<sup>-1</sup>
- B. wm
- C. wm<sup>-2</sup>
- D. wm<sup>-3</sup>
|
| 5 |
<p class="MsoNormal">the distance between two consecutive trough or crest is
called:<o:p></o:p></p> |
- A. <p class="MsoNormal">wavelength<o:p></o:p></p>
- B. <p class="MsoNormal">frequency<o:p></o:p></p>
- C. <p class="MsoNormal">time period<o:p></o:p></p>
- D. <p class="MsoNormal">amplitude<o:p></o:p></p>
|
| 6 |
<p class="MsoNormal">1 KB = :<o:p></o:p></p> |
- A. <p class="MsoNormal">1024 bytes<o:p></o:p></p>
- B. <p class="MsoNormal">1024 KB<o:p></o:p></p>
- C. <p class="MsoNormal">1024MB<o:p></o:p></p>
- D. <p class="MsoNormal">None of these<o:p></o:p></p>
|
| 7 |
The speed of sound was accurately measured in: |
- A. 1736
- B. 1737
- C. 1738
- D. 1739
|
| 8 |
The intensity of lawn mover is: |
- A. 10<sup>-1</sup> wm<sup>-2</sup>
- B. 10<sup>-2</sup>wm<sup>-2</sup>
- C. 10<sup>-1</sup>wm<sup>-3</sup>
- D. 10<sup>-3</sup>wm<sup>-2</sup>
|
| 9 |
The speed of sound in air at 0 <sup>o</sup>C is: |
- A. 331 ms<sup>-1</sup>
- B. 332 ms<sup>-1</sup>
- C. 333 ms<sup>-1</sup>
- D. 336 ms<sup>-1</sup>
|
| 10 |
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
|