Question

Describe the principle on which SONAR works.

Answer 1

1. SONAR means sound navigation and ranging.
2. SONAR is an instrument that makes use of ultrasonic waves for sound-ranging.
3. SONAR works on the principle of echoes. It uses echoes in to determine the sea depth and locating the presence of objects underwater..

Working of SONAR

1. A strong and short (ultrasonic) sound signal is sent toward the bottom of the ocean.
2. The echo of this signal is then detected by it.
3. By nothing the time after which the reflected sound (echo) reaches back.

Hence, SONAR works based on the principle of reflection of sound.