in a submarine equipped with sonar , the time between transmission of ultrasonic signals and the reception of the echo after reflection is found to be 80 sec. find the distance of the obstacle (from inbinarine) speed of sound in water is 1530 m/sec.
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1530*half time of echo
so ans 1530*40=61200
so ans 1530*40=61200
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61200m please find your answer in the picture if you have any query left please comment
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