A bat emits ultrasonic sound of frequency 100 kHz in air. If this sound meets a water surface, the wavelengths of the reflected and transmitted sound are (Speed of sound in air = 340 m `s^(-1)` and in water = 1500 m `s^(-1)` )

Answer

(i) `3.4 xx10^(-4)m`
(ii) `1.49 xx10^(-3)m`

Explanation

`lamda_("air")=(340)/(10^(6))=3.4xx10^(-4)m, lamda_("water")=(1486)/(10^(6))=1.49xx10^(-3)m`