A bat emits ultrasonic sound of frequency 100 kHz in air. If the sound gets reflected (without transmission and loss of energy) from a water surface then wavelength of the reflected sound is
[speed of sound in air is 340 ms−1]
The correct option is B 0.34×10−2 m
After reflecting from water surface, the sound wave will travel in air.
We know that velocity of sound wave is given by,
v=λf, where λ is wavelength and f is frequency.