A resonating glass tube closed at one end is 4.0 cm wide and 47 cm long. What are the frequencies of the first three harmonics for the resonating tube? The speed of sound in air at this temperature is 346 m/s.

3 answers

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Sra
The fundamental or "first harmonic" wavelength is four times the pipe length. Review the integer rules for the other harmonics. The frequency is
(sound speed)/(wavelength)
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