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An air column in a pipe which is closed at one end will be in resonance with a vibrating tuning fork of frequency 264 Hz if the length of the air column in cm is (Speed of sound in air = 340 m/s)
A. 32.19 cm
B. 64.39 cm
C. 100 cm
D. 140 cm

1 Answer

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Best answer
Correct Answer - A
For fundamental mode of vibration,
`because" "(lamda)/4=lbecause lamda=41`
`because" "v=flamdaor 340=264xx4l`
`because" "l=32.19cm`

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