Sound – Online MCQs – Physics 10th

1. Sound travels faster in solid as compared to gases because of:

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

3. As compared to air, the speed of sound in liquids and solids is

4. The speed of sound in air is directly proportional to the square root of the:

5. Sound waves are:

6. Bats can hear frequencies up to:

7. Sound waves are produced by:

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

9. Pitch depends upon:

10. A safe level of noise depends on

11. The approximate value of the speed of sound in air at 0°C temperature is:

12. The two factors that affect the speed of sound in the air are:

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

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

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

16. When the frequency of sound increases, the wavelength and period

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

18. For hearing clear echoes, the minimum distance of the obstruction from the source of sound should be:

19. Audible frequencies range that a normal human ear can detect is:

20. Sound waves Cannot pass through