An ultrasonic signal is sent from a ship towards the bottom of the sea. It is received back after 1.5seconds. What is the depth of the sea ? (GIVEN SPEED OF SOUND IN SEA WATER IS 1530m/s ). ans is 1147.5m . But I not know its sollituio.
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Answer:
Distance between ship and seabed= d
The sound has to cover the distance twice.
So
Velocity of sound =2d/t
d = Velocity of sound×t/2
= 1530×1.5/2 = 1147.5
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