Q30 of 199 Page 185

What conclusion can be obtained from the observation that when the prongs of a sound making tuning fork touch the surface of water in a beaker, the water gets splashed?

The conclusion which can be obtained from the observation that when the prongs of a sound making tuning fork touch the surface of water in a beaker, the water gets splashed is that the prongs of tuning fork vibrates.


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28

Name the device which is used to produce sound in laboratory experiments.

 29

What is the nature of sound waves in air?

 31

State whether the following statement is true or false:

Sound produced by a vibrating body travels to our ears by the actual movement of air.

 32

Which of the following travels slowest in air and which one fastest?

Supersonic aircraft, Light, Sound