Sound – Online MCQs – Physics 10th

1. The speed of sound is the same in al! mediums. This statement is:

2. Frequency of infrasonic waves is __________ than the frequency of ultrasound waves.

3. It is extensively used in marine applications.

4. Sound with frequencies below the lower limit of the human range of audibility is known as:

5. Bats can hear frequencies up to:

6. Sound waves Cannot pass through

7. To propagate, sound needs a material medium of:

8. Generally, we classify ultrasound as those having frequencies above:

9. On what factor does the quality of sound depend?

10. The sensation of sound persists in our brain for about

11. Sounds of frequency higher than 20,000 Hz which are inaudible to the normal human ear are called

12. The separation between two consecutive compressions of the sound wave is called:

13. The order of speed of the sound in different mediums from faster to slowest is:

14. A safe level of noise depends on

15. The reflection of sound is called

16. The S.I unit sound of intensity is:

17. Which types of waves cannot travel through a vacuum?

18. The cause of the echo is:

19. At a temperature of 20°C, the speed of sound is:

20. Main sources of noise pollution are: