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, w...

Question 1 Report

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?

0.75km

1.50km

2.20km

3.00km

3.75km

Answer Details

Echo time = 1 $\div$ 2 = 0.5sec

depth = velocity x time

= 1500 x 0.5

= 750m = 0.75km

Read lesson note on Sound Waves (WAEC)

Sound Waves

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