| 1 |
Light waves are |
- A. Longtail waves
- B. Transvers waves
- C. Stationary waves
- D. Mechanical wave
|
| 2 |
Stars moving away from Earth show a |
- A. Green shift
- B. Blue shift
- C. Red shift
- D. Yellow shift
|
| 3 |
The waves used in radar speed trap are |
- A. <u>Longitudinal</u>
- B. Sound wave
- C. Micro waves
- D. Matter waves
|
| 4 |
Beats can be heard when difference of frequency is not more than. |
- A. 8 Hz
- B. 10 Hz
- C. 4 Hz
- D. 6 Hz
|
| 5 |
In transverse waves the particles of medium vibrate |
- A. Along the direction of wave
- B. Opposite to direction of wave
- C. Perpendicular to direction of wave
- D. Slowly
|
| 6 |
the louder the sound, the greater will be its. |
- A. Speed
- B. Frequency
- C. Amplitude
- D. Wave length
|
| 7 |
The wavelength of fundamental note in one end closed pipe in term of length 'l' of pipe is. |
- A. 4 l
- B. 2l
- C. l
- D. 1/4 l
|
| 8 |
The distance between two consecutive crests of troughs is called |
- A. Time period
- B. Wave length
- C. Frequency
- D. Displacement
|
| 9 |
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
|
| 10 |
Diffraction is a special type of |
- A. Reflection
- B. Polarization
- C. Interference
- D. Refraction
|