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Questions  

The frequency of fundamental tone in an open organ pipe of length 0.48 m is 320 Hz.  Speed of sound is 320 m/sec. Frequency of fundamental tone in closed organ pipe will be 

a
153.8 Hz
b
160.0 Hz
c
320.0 Hz
d
143.2 Hz

detailed solution

Correct option is B

nClosed=12(nOpen)=12×320=160 Hz

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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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