Question

What the use of Fathometer?

Answer 1

$\huge\mathfrak{\underline{explanation}}$

●Fathometer is used to measure the ocean depth.

●With the help of sound waves to determine the depth of water.

Or

●An instrument used to determine the depth of water.

Answer 2

A Fathometer is used to measure the ocean depth.

It uses the sound waves to determine the ocean depth..

Hope it helps..