Question

A sound wave travels in water at the speed of 1500 m/s. The minimum separation between two layers
of the same density is 75 cm. Find the frequency of the sound.​

Answer 1

Explanation:

Speed of sound wave = 1500m/s

Wavelength = 75cm = 0.75 m

Frequency = 1500/0.75 = 2000 hz.

Answer 2

Answer:

wavelength = 150 cm

frequency = speed /wavelength

= 1500/ 1.5m

= 100 hz