Question

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`.

Answer 1

Correct Answer - B::C
`lambda_(min) = (nu)/(f_(max)) = (1450)/(20000)`
`= 0.0725 m = 7.25 cm`
`lambda _(max) = (nu)/(f_(min)) = (1450)/(20) = 72.5m`