Question

Using the SONAR, sound pulses are emitted at the surface of the water. The echo is heard after 3 seconds. find the depth of the sea at that place if velocity of sound in seawater = 1550 m/s​

Answer 1

Answer:

The depth of the sea at that place = 2,325 m.

Explanation:

Given:

• Sound pulses are emitted at the surface of the water.

• The echo is heard after 3 seconds.

• Velocity of sound in seawater = 1550 m/s.

To find:

Depth of the sea at that place where sound pulses are emitted.

Solution:

Time taken (for one way journey) = 3/2 = 1.5 s

We know that,

Velocity = Distance/Time

(Note: Depth of the sea = Distance)

→ Distance = Velocity × Time

Now substitute the known values

→ Distance = 1550 × 1.5

= 2.325 m

Thus, 2.325 m is the required answer.