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Q.

A pipe open at both ends has a fundamental frequency f in air. The pipe is dipped vertically in water, so that half of it is in water. The fundamental frequency of the air column is now

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a

f2

b

2f

c

f

d

3f4

answer is D.

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Detailed Solution

f=V2ℓ, In  water  f'=V4ℓ2=f

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