Explain the working and application of a sonar.

Explanation

Working SONAR stands for Sound Navigation and Ranging.
It consists of transmitter and detector , transmitter transmit electrical signal into ultrasonic sound signal and detector converts ultrasonic sound into electrical signal.
.d. is the total distance , t - total time taken , v - velocity of the ultrasonic sound waves.
Applications : (a) Depth of the ocean can be determined
(b) Location of submarines.