the Echo of a sound signal centre by a ship into sea is detected after 2 seconds if the speed of sound in the water is 1500 M second how deep in the sea at that point
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the sound wave sent should reach the point and bounce back and reach the ship again for this the sound wave should travel the distance twice
let the distance from the ship to the point be x
it shld travel 2x
s = d/t
1500 = 2x/2
this implies x= 1500m
therefore the point is 1500 m deep
hope this helps
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