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Explain " SONAR " Class 9 Good content answer required |
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Answer» your answer !!____________________________☣ ☣▶The word 'SONAR' stands for 'SOund Navigation And RANGING'. ▶Sonar is an apparatus (or device) which is used to find the depth of a sea or to LOCATE the under-water things like shoals of fish, shipwrecks, and ENEMY submarines.▶A sonar apparatus consists of two parts : ( i ) A transmitter for emitting Ultrasonic waves ( ii ) A receiver for detecting Ultrasonic waves ▶The sonar device measures time taken by the ultrasonic sound pulse to travel from the ship to the bottom of the sea and back to the ship.▶Half of this time GIVES the time taken by the ultrasonic sound travel from the ship to the bottom of the sea.▶Through sonar, we can calculate the DISTANCE between the ship and the bottom of the sea.___________________________Thanks !! |
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