A pipe of 30 cm long and open at both the ends produces harmonics. Which harmonic mode of pipe resonates a 1.1 kHz source ? Given speed of sound in air = 330 ms^(-1).

A pipe of 30 cm long and open at both the ends produces harmonics. Whi

1.	A pipe of 30 cm long and open at both the ends produces harmonics. Which harmonic mode of pipe resonates a 1.1 kHz source ? Given speed of sound in air = 330 ms^(-1).
Answer» Fifth harmonic Fourth harmonic THIRD harmonic Second harmonic Solution :FUNDAMENTAL frequency in an open organ pipe is `V = (v)/(2l) = (330)/(2 xx (30)/(100)) = (3300)/(6) ` = `550` Hz. Let frequency of nth harmoonic resonantes with 1.1 kHz. n.v = 1100 n= `(1100)/(550) = 2 `. so correct choice is d .

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A pipe of 30 cm long and open at both the ends produces harmonics. Which harmonic mode of pipe resonates a 1.1 kHz source ? Given speed of sound in air = 330 ms^(-1).

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