Question

a sound wave sent out from a boat arrives back after 3 seconds.If the speed of sound in water is 1500 metre per second.How deep is the water.
pls answer this question with steps as fast as you can​

Answer 1

Answer:

Correct option is B)

Velocity of sound in water v=1500 m/s

Let the depth of sea be x.

The sound has to travel to the bottom of the sea and get reflected back to the ship itself, thus total distance traveled by the sound is 2x.

Time taken to hear an echo t=1 s

So, 2x=vt

Or 2x=1500×1

⟹ x=750 m

Answer 2

Answer:

the correct options is B)