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 expleanation of assertion.B. If both assertion and reason are true and reason is not the correct expleanation of assertion.C. If assertion is true but reason is false.D. If assertion and reason both are false.

Assertion : When we start filling an empty bucket with water, the pitc

1.	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 expleanation of assertion.B. If both assertion and reason are true and reason is not the correct expleanation of assertion.C. If assertion is true but reason is false.D. If assertion and reason both are false.
Answer» Correct Answer - 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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