A ship's sonar sends down a signal of 6000 Hz through water in which the speed of is 1500m/s.The echo from the sea-bed is received after two seconds.What is the depth of the sea bed .
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Explanation:
Speed=distance/time
1530=distance /2
Distance =1530×2
=3060 metres
So,the depth of the sea is 3060/2=1530 metres
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