Sound WavesMedium
Question
An organ pipe closed at one has fundamental frequency of 1500 Hz. The maximum number of overtones generated by this pipe which a normal person can hear is
Options
A.4
B.13
C.6
D.9
Solution
In an organ pipe only odd harmonics are found. So frequency equal to odd multiple of 1500Hz may be found in this case. Maximum audible frequency is 20,000 Hz. So possible frequency are 1500Hz, 4500Hz, 7500Hz, 10500Hz, 13500Hz, 16500Hz, 19500Hz, 19500Hz, will be sixth overtone as 4500 will be first overtone.
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