First slide

Standing waves

Question

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 column in cm is given velocity of sound is equal to 332ms^-1

Easy

A

31.43
B

62.50
C

93.75
D

125

Solution

$264 = \frac{V}{4 l} l_{1} = \frac{(332 Ã 100)}{4 Ã 264} = 31 â 43 c m l_{2} = 3 Ã 31 â 25 = 93 â 75 c m$

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