An organ pipe, open at both ends produces 5 beats/s when vibrates with a source of frequency 200 Hz. The second of the same pipe produces 10 beats/s with a source of frequency 420 Hz. The frequency of source is

Question

Dr. Abubacker · Accepted Answer

(b) Since, an open pipe produces both even and odd harmonics, hence frequency of pipe
$= 200 \pm 5$
=195 Hz or 205 Hz.
Frequency of second harmonic of pipe =2v.
Now, the number of beats=10
$	herefore\ \ 2v = 420 \pm 10 = 410\ Hz\ or\ 430\ Gz$
∴v=205 Hz or 215Hz.$\ $
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Q. An organ pipe, open at both ends produces 5 beats/s when vibrates with a source of frequency 200 Hz. The second of the same pipe produces 10 beats/s with a source of frequency 420 Hz. The frequency of source is

Explanation

Reviewed by Dr. Abubacker

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