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Question

The frequency of fundamental tone in an open pipe of length of 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
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B
160.0 Hz
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C
320.0 Hz
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D
140.2 Hz
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Solution

The correct option is C 160.0 Hz
The relation between the frequency of the fundamental tone for closed and open pipe is given by:
nclosed=12(nopen)

=12×320=160Hz

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