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An organ pipe is open at both ends. It is producing sound at its sixth harmonic, the frequency of which is 257 Hz. The speed of...Asked by LS
An organ pipe is open at both ends. It is producing sound at its third harmonic, the frequency of which is 406 Hz. The speed of sound is 343 m/s. What is the length of the pipe?
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Answered by
drwls
Read http://www.studyphysics.ca/newnotes/20/unit03_mechanicalwaves/chp141516_waves/lesson51.htm
to convince yourswelf that the third harmonic wavelength is in this case (3/2)L, where L is the pipe length.
In this case, the wavelength is
lambda = V/f = 343/406 = 0.8448 m
The tube length must be 2/3 of that which would be 0.563 m
to convince yourswelf that the third harmonic wavelength is in this case (3/2)L, where L is the pipe length.
In this case, the wavelength is
lambda = V/f = 343/406 = 0.8448 m
The tube length must be 2/3 of that which would be 0.563 m
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