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Assertion : When we start filling an emp...

Assertion : When we start filling an empty bucket with water, the pitch of sound produced goes on decreasing.
Reason : The frequency of man voice is usually higher than of woman.

A

If both assertion and reason are true and reason is the correct explanation of assertion.

B

If both assertion and reason are true and reason is not the correct explanation of assertion.

C

If assertion is true but reason is false.

D

If assertion and reason both are false.

Text Solution

Verified by Experts

The correct Answer is:
D
A bucket can be treated as a pipe closed at one end. The frequency of the note produced `=(v)/(4L)`, here L the bucked is filled with water L decreases, hence frequency increases. Therefore, frequency of pitch of sound produced goes on increasing. Also, the frequency of woman voice is usually higher than of man.
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