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Questions  

Find the fundamental frequency of a closed pipe, if the length of the air column is 42 m. (speed of sound in air = 332 m/sec)

a
2 Hz
b
4 Hz
c
7 Hz
d
9 Hz

detailed solution

Correct option is A

For closed pipe  n=v4l⇒n=3324×42=2Hz.

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Similar Questions

A tube of certain diameter and of length 48 cm is open at both ends. Its fundamental frequency of resonance is found to be 320 Hz. The velocity of sound in air is 320 m/s. One end of the tube is now closed, considering the effect of end correction, calculate the lowest frequency of resonance for the tube (in Hz). 


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