Name the device used to measure the depth of a submarine from the water surface. State the principal on which is based on. Also describe how the device is used to find the depth of the submarine
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Submarine navigation
Submarines rely on sonar to a greater extent than surface ships as they cannot use radar at depth. The sonar arrays may be hull mounted or towed.
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a)Submarine navigation
Submarines uses the principle called : SONAR ( SOUND NAVIGATION AND RANGING) to a greater extent than surface ships as they cannot use radar at depth. The sonar arrays may be hull mounted or towed.
b. SONAR works by sending out sound waves and measuring how long it takes for the echo to return.
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