| 1 |
The speed of sound in air would become double than ots speed at 10<sup> o</sup>C at a temperature of. |
- A. 313 <sup>o</sup>C
- B. 586 <sup>o</sup>C
- C. 859<sup> o</sup>C
- D. 899 <sup>o</sup>C
|
| 2 |
When two identical travelling waves are superimposed, velocity of resultant wave. |
- A. Decreases
- B. Increases
- C. Remain same
- D. Becomes zero
|
| 3 |
Increase in the velocity of sound in air for 1 <sup>o</sup>C rise in temperature is. |
- A. 61 ms-1
- B. 0.61 ms-1
- C. 161 ms-1
- D. 261 ms-1
|
| 4 |
The distance between two consecutive crest is called. |
- A. Displacement
- B. Amplitude
- C. Wave front
- D. Wavelength
|
| 5 |
When ever the path difference between the waves is integral multiple of half the wavelength, interference will be |
- A. Constructive
- B. Destructive
- C. (-)ve
- D. (+) ve
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| 6 |
The speed of sound is greater in solids due to their high. |
- A. Density
- B. Pressure
- C. Temperature
- D. Elasticity
|
| 7 |
Waves transport energy without transporting |
- A. Matter
- B. Force
- C. Momentum
- D. All of these
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| 8 |
the wavelength of transverse wave travelling with a speed 'v' having frequency 'f' in equal to |
- A. f/v
- B. Vf
- C. V/f
- D. f/V2
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| 9 |
The experimental value for the velocity of sound in air is |
- A. 233 m-sec<sup>-1</sup>
- B. 333 m-sec<sup>-1</sup>
- C. 433 m-sec<sup>-1</sup>
- D. 533 m-sec<sup>-1</sup>
|
| 10 |
Speed of sound in aluminum at 20 <sup>o</sup>C is. |
- A. 3600 m/s
- B. 5100 m/s
- C. 5130 m/s
- D. 3500 m/s
|