| 1 |
The speed of sound increases with the increase of in |
- A. Pressure
- B. Volume
- C. Temperature
- D. Density
|
| 2 |
Light waves are |
- A. Longtail waves
- B. Transvers waves
- C. Stationary waves
- D. Mechanical wave
|
| 3 |
The profile of periodic waves generated by a source executing S.H.M is represented by a. |
- A. Circle
- B. Sine curve
- C. Tangent curve
- D. Cosine curve
|
| 4 |
Speed of sound in vacuum is |
- A. 280 ms-1
- B. 332 ms-1
- C. 333 ms-1
- D. Zero ms-1
|
| 5 |
The periodic variations of sound between maximum and minimum loudness are called. |
- A. Doppler's effect
- B. reflection
- C. Laplace correction
- D. Beats
|
| 6 |
In vibrating string, the points where the amplitude is maximum are called. |
- A. Nodes
- B. Antinodes
- C. Troughs
- D. Crests
|
| 7 |
10 waves pass through a point in 2 seconds with speed 10 ms-1 the frequency of wave will be |
- A. 1 Hz
- B. 2 Hz
- C. 5 Hz
- D. 10 Hz
|
| 8 |
Sound wave can not be |
- A. Reflected
- B. Refracted
- C. Diffracted
- D. Polarized
|
| 9 |
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
|
| 10 |
A set of frequencies which are multiples of the fundamental frequency are called. |
- A. Doppler effect
- B. Nodal frequencies
- C. Beat frequencies
- D. Hamonics
|
