Question

What is ‘SONAR’? State the principle on which it is based

Answer 1

Answer:

The ultrasonic waves travel through the water and after striking the target the beam is reflected from the seabed and is received by an under-water detector (mounted on the ship). The detector then converts the waves into electrical signals which are properly interpreted.

Explanation:

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Answer 2

Answer:

Sonar is based on the principle of reflection of Ultrasonic Sound waves. Ultrasonic sound waves are high frequency waves with frequency over 20Khz. The SONAR transmitter in the Ship sends the ultrasonic sound waves towards the sea bed from where they get reflected.