Question

Frequency of second harmonic of a open organ
pipe of length 100 cm, if velocity of sound in air is
330 m/s, is
1) 165 Hz
(2) 330 Hz
(3) 660 Hz
(4) 500 Hz​

Answer 1

The frequency of second harmonic of pipe is 330 Hz.

Explanation:

Given data:

length of pipe "L"= 100 cm = 100/100 = 1 m

Velocity of sound in air "c " = 330 m/s

Formula:

Frequency "f " = c / λ

Where

"c " = speed of sound

"λ"  = wavelength

f = 330 / 1 = 330 Hz

The the frequency of second harmonic of pipe is 330 Hz.

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