Find the minimum and maximum wavelengths of sound in water that is in the audible range (20—20000 Hz) for an average human ear. Speed of sound in water = 1450 m s-1.
Given:
Speed of sound in water v = 1450 ms−1
Audible range for average human ear = (20-20000 Hz)
Relation between frequency 
and wavelength 
with constant velocity:
(a) For minimum wavelength, the frequency should be maximum.
Frequency 
As 
⇒ 
⇒
(b) For maximum wave length, the frequency should be minimum.
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