4. Take a long pipe of approximately 50 cm in length or more. You stand at one end and tell someone to speak from the other end. Hear the sound and answer the following questions:
a. Is the sound you hear normal or different? Please explain with proper reason.
b. If the total setup is put under the water, then will there be any difference? If yes, explain why?
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Answer:
a....yes,the sound will not be the same as there will be echoing of sound also, the pitch of the sound would be low.
b..when the setup would be underwater the frequency of the sound will become very...and it can be there,that you might not get the sound...
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