Question

Ultrasonic waves are transmitted downwards into the sea with the help of a SONAR . The reflected sound is received after 2 s. What is the depth of the sea at that place ? ( Velocity of sound in seawater = 1550 m/s )

Answer 1

Answer:

We know,

2d=v×t;d=?v=1500 m/st=6 s

Then,

2×d=1500×6

⟹d=4500 m=4.5 km

Answer 2

Answer:

depth= 2×1550

d= 3100m

thus depth is 3100 m