Question

1) Ultrasonic waves are transmited downwards into the sea with the
help of a SONAR. The reflected sound is received after 6 second.
What is the depth of the sea at that place? To find the depth complete
the activity.
[Velocity of sound in sea water = 1550 m/s.]
Time taken by sound waves to reach.
The bottom of the sea =
3 Second
2
Distance
Velocity =
Distance =
x time
1550 X 3
11
meter​

Answer 1

Answer:

b=1550

Explanation:

we expose

Distance   594 km

Velocity =  f=390

x time       3 hours

1550 X 3

11

meter​