| 1 |
A stationary waves is established din a string which vibrates in four segments at a frequency of 120 Hz, Its fundamental frequency is. |
- A. 15 Hz
- B. 30 HZ
- C. 60 Hz
- D. 480 Hz
|
| 2 |
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
|
| 3 |
The pitch of sound deepens upon |
- A. Intensity of sound
- B. Loudness of sound
- C. Wavelength of sound
- D. Frequency of sound
|
| 4 |
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
|
| 5 |
When two waves having same frequency traveling in same direction combine, phenomenon is called |
- A. Wave motion
- B. Combination of waves
- C. Interference
- D. Diffraction
|
| 6 |
The speed of sound is greater in solids due to their high. |
- A. Density
- B. Pressure
- C. Temperature
- D. Elasticity
|
| 7 |
The distance covered by wave in 1 sec is |
- A. wavelength
- B. Wave number
- C. Wave speed
- D. Frequency
|
| 8 |
the velocity of sound is maximum at 20 <sup>o</sup>C in |
- A. Lead
- B. Copper
- C. Glass
- D. Iron
|
| 9 |
The apparent change in the pitch of sound due to relative motion is called. |
- A. Carnot theorem
- B. Interference
- C. Doppler effect
- D. Beats
|
| 10 |
A bat finding its correct location by sending |
- A. Matter waves
- B. Ultrasonic waves
- C. Infrasonic waves
- D. electromagnetic waves
|