question_answer 6)

A bat emits ultrasonic sound of frequency 100 k Hz in air. If this sound meets a water surface, what is the wavelength of (a) the reflected sound (b) the transmitted sound ? Speed of sound in air = 340  and  in water = 1486 .                                                             

Answer:

Here, v = 100 kHz. = Hz.,              Wavelength of reflected  sound. Wavelength of transmitted sound,