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Q.

A pipe, which is closed at one end has a length of 1m. Neglecting end correction, the air column in the pipe can resonate for the sound of frequency velocity of sound in air is 320m/s

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a

80 Hz

b

240 Hz

c

400 Hz

d

All of these

answer is D.

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Detailed Solution

Frequency of air column in an one end closed tube, f=n.v4l=n.3204 x 1Hz=80 n Hz.when n = 1, f = 80 Hz, when n = 3, f = 240 Hz, when n = 5, f = 400 Hz,
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