In order to find the depth of the sea, a ship sends out a sound wave and receives an echo after one second. If the velocity of sound in water is 1500ms-1, what is the depth of the sea?
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Correct Answer: Option A
Explanation:
Echo time = 1 \(\div\) 2 = 0.5sec
depth = velocity x time
= 1500 x 0.5
= 750m = 0.75km
Echo time = 1 \(\div\) 2 = 0.5sec
depth = velocity x time
= 1500 x 0.5
= 750m = 0.75km