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09/01/2021 12:18 pm
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A sound wave travels at a speed of 339 m s-1L. If its wavelength is 1.5 cm, what is the frequency of the wave? Will it be audible?
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09/01/2021 12:21 pm
Here, speed of sound wave,
v = 339 m s-1
Wavelength of sound wave,
λ = 1.5 cm = 1.5 x 10-2 m
Frequency of the sound wave,
v = \(\frac{v}{\lambda}\) = \(\frac{339}{1.5 \times 10^{-2}}\) = 22600 Hz
The sound is not audible as its frequency lies beyond the audible range (20 Hz to 20000 Hz).