Question

An ultrasonic wave is sent from a ship towards the bottom of the sea. It is found that the time interval between the sending and the receiving of the wave is 1.5 second. Calculate the depth of the sea if the velocity of sound in sea water is 1400⁢ ms⁻¹.

Answer 1

Given: \[v=1400\ \text{m s}^{-1}\]

\[t=1.5\ \text{s}\]

\[d=\frac{vt}{2}\]

\[=\frac{1400\times1.5}{2}\]

\[=\frac{2100}{2}\]

= 1050 m