Class 9 Sound Quiz Set 1

1. In a longitudinal wave, the individual particle of the medium move

 
 
 
 

2. Reverberation of sound is used in

 
 
 
 

3. A tuning fork is vibrating in the air. The number of compressions going past a given point per second

 
 
 
 

4. If the distance between a crest and and its consecutive trough is L, then the wavelength of the wave is given by

 
 
 
 

5. The lowest audible frequency for a human being is about

 
 
 
 

6. Sound travels through which medium ?

 
 
 
 

7. In a transverse wave, the individual particle of the medium move

 
 
 
 

8. To hear a distinct echo each time interval between the original sound and the reflected sound must be:

 
 
 
 

9. Which part of human ear converts sound vibrations into electrical signals

 
 
 
 

10. A boat is set into vertical Vibration by waves of speed 5 ms-1 whose crests are 5m apart. The Time period of vertical vibration of the boat is

 
 
 
 

11. The reciprocal of frequency is

 
 
 
 

12. When we pluck the wire of a sitar, the waves produced in its wire are :

 
 
 
 

13. Which characteristic is this? We can distinguish between sound having same pitch and loudness.

 
 
 
 

14. Waves formed over water surface are

 
 
 
 

15. If a wave complete 20 vibration in 2.5 s, then its frequency is

 
 
 
 

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