Question

What does SONAR stands for ? Name its 2 parts. List 2 uses of SONAR technique

Answer 1

Sonar is a technique that uses sound propagation to navigate, communicate with or detect objects on or under the surface of the water, such as other 
two parts are
depth and direction
it is used in ships

Answer 2

Sonar (originally an for SOund Navigation And Ranging) is a technique that uses sound propagation (usually underwater, as in submarine navigation) to navigate, communicate with or detect objects on or under the surface of the water, such as other vessels. Two types of technology share the name "sonar": passive sonar is essentially listening for the sound made by vessels; active sonar is emitting pulses of sounds and listening for echoes. 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. systems vary from very low (infrasonic) to extremely high (ultrasonic).

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