Q.14. A sound wave travels at a speed of . If its wavelength is 1.5 cm, what is the frequency of the wave? Will it be audible?
The speed with which sound travels is .
and the wavelength is 1.5 cm.
Then we know the relation,
Where, is velocity, is the wavelength, and is the frequency of the wave.
Calculated frequency is out of audible range of human ears which is
Therefore, it is inaudible.