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

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

3. Reverberation of sound is used in

4. 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

5. The reciprocal of frequency is

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

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

8. Sound travels through which medium ?

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

10. Waves formed over water surface are

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

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

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

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

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