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A sound wave travels at a speed of 339 m...

A sound wave travels at a speed of `339 m//s`. If its wavelength is `1.5 cm`, what is the frequency of the wave ? Will it be audible ?

Text Solution

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Here, Speed of sound, `v = 339 ms^(-1)`
Frequency, `f = ?` (To be calculated)
Wavelength, `lambda =1.5cm`
`= (1.5)/(100)m`
`= 0.015m`
Now, `v = f xx lambda`
So, `339 = f xx 0.015`
And, `f =(339)/(0.015)`
Frequency, `f = 22600 Hz`
Since the frequency of 22600 Hz of this sound wave is beyond the upper limit of hearing which is 2000 Hz, therefore, this sound will not be audible. It is actually ultrasonic sound.
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