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A sufficiently long closed organ pipe ha...

A sufficiently long closed organ pipe has a small hole at its bottom . Initially , the pipe is empty . Water is poured into the pipe at a constant rate . The fundamental frequency of the air column in the pipe

A

continously increases.

B

first increases and then becomes constant.

C

continuously decreases.

D

first decreases and then becomes constant.

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The correct Answer is:
B
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