Q. 114.0( 1 Vote )

A cylindrical tube, open at both ends, has a fundamental frequency y. The tube is dipped vertically in water so that half of its length is inside the water. The new fundamental frequency is
A. v/4

B. v/2

C. v

D. 2v

Answer :

When a tube of length L open at both ends has a fundamental frequency ν, the where V is the velocity of the sound wave. When this tube is half dipped in water, the length of the air column becomes L/2 and it becomes a tube closed at one end. In such closed pipe the frequency of the fundamental mode Here , so

Hence the option C is correct.

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