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Question

A sound wave travels at a speed of 340m/s. If its wavelength is 2cm, what is the frequency of the wave? Will it be in the audible range?

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Solution

Given,
Velocity V=340m/s
Wavelength λ=2cm=0.02m
Frequency f=?
We have,
V=F.λ
340=F×0.02
F=3400.02=17,000Hz
As the audible range is in between 20Hz and 20,000Hz this sound wave is at audible range.

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