Sound – Online MCQs – Physics 10th

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

2. Quality of sound that distinguishes between a shrill and q flat sound is called:

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

4. Sound waves Cannot pass through

5. The speed of sound depends on the properties such as:

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

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

8. If a wave completes 20 vibrations in 2.5s, then its frequency is:

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

10. Main sources of noise pollution are:

11. On increasing the temperature, the speed of sound in air:

12. The speed of sound varies with

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

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

15. Sound is a form of:

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

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

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

19. The technique used to locate underwater depths or locating objects lying deep on the ocean floor is called:

20. Bats can hear frequencies up to: