Question

explain the working and applications of SONAR?

Answer 1

Sonar is a device that uses ultrasonic waves to measure the distance, direction and speed of underwater objects. Principle: It uses the phenomenon of echoes in determining the sea-depth and locating the presence of under-water objects.

Answer 2

the transmitter produces and transmits ultrasonic waves these waves travel through water and after striking the object on the seabed gets reflected back and I sensed by the detector the detector converts Ultrasonic waves into electric signals which are appropriately interpreter the distance of the object that reflected the sound wave can be calculated by knowing the speed of sound in water and time interval between transmission and reception of the ultrasound