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What is a sonar?...

What is a sonar?

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SONAR is the abbreviated form of sound navigation and ranging for finding the location of an obstacle such as ship in sea or for finding the depth of sea.
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ICSE-SPECIMEN PAPER (SOLVED)-SECTION II
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  15. There is a sunken ship at a depth of 50 m in a sea. From the surface o...

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  16. State two differences between the forced and resonant vibrations.

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