Question

Write Report on Sonar

Answer 1

Answer:

Sonar is a technique that uses sound propagation to navigate, measure distances , communicate with or detect objects on or under the surface of the water, such as other vessels. Sonar may be used as a means of acoustic location and of measurement of the echo characteristics of «targets» in the water. The term sonar is also used for the equipment used to generate and receive the sound. The acoustic frequencies used in sonar systems vary from very low to extremely high .