Question

Sonar is used to detect the ________ of a sea.

Answer 1

1. SONAR, a sound navigation and ranging system is a device that uses the phenomenon of echo to determine various parameters.
2. SONAR uses the echo technique to estimate the position of enemy ships and planes.
3. It is generally used to measure the depth of a sea or seabed.
4. It also estimates any hurdles in the way of ships moving in oceans.
5. It is also installed on airplanes to estimate and calculate the distance of other airplanes.
6. The sound which is produced by the transmitter of the SONAR returns back after the echo is produced and the data is being fetched.
   
7. Thus, Sonar is used to detect the depth of a sea.