An open-pipe resonator has a length of 2.39 m. Calculate the frequency of its third harmonic if the speed of sound is 343 m/s. 80 Hz
115.7 Hz
215.27 Hz
100.1 Hz

f = 215.27 Hz

Explanation:

We have,

An open-pipe resonator has a length of 2.39 m.

It is required to find the frequency of its third harmonic if the speed of sound is 343 m/s.

For third harmonic, its length is equal to,

So,

f is frequency in its third harmonics

So, the frequency of its third harmonic is 215.27 Hz.

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