A pipe $30\ cm$ long is open at both ends. Which harmonic mode of the pipe is resonantly excited by a $1.1\ kHz$ source? (Take speed of sound in air $= 330\ ms^{- 1}$)

Question

Dr. Abubacker · Accepted Answer

(b) Fundamental frequency of open pipe
First harmonic $= n_{1} = \frac{v}{2l} = \frac{330}{2 	imes 0.3} = 550\ Hz$
Second harmonic $= 2 	imes n_{1} = 1100\ Hz. = 1.1\ kHz$

Q. A pipe $30\ cm$ long is open at both ends. Which harmonic mode of the pipe is resonantly excited by a $1.1\ kHz$ source? (Take speed of sound in air $= 330\ ms^{- 1}$)

Explanation

Reviewed by Dr. Abubacker

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