Question

A sonar emits a sound signal of frequency 40000Hz, towards the bottom of the sea.

This signal is reflected on the body of a submarine after a delay of 0.3 seconds.
Given: Speed of sound in water is 1500 m/s.

Calculate the period of this wave.

Answer 1

0.000025s

Step-by-step explanation:

Period it’s. : T(s)= 1/f(Hz)=1/40000Hz=0.000025s