Question

A SONAR transmits an ultrasonic sound signal towards the bottom of a sea. The time interval between the transmitting and the receiving of sound waves is 2 seconds. If the speed of ultrasonic sound in seawater is 1560 m/s, find the depth of the sea.

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Answer 1

Answer:

Let, the Depth of sea is x,

Distance traveled by sound wave=2d,

Time is taken by sound to travel both ways=1.6s,

Speed of the sound =

time taken

total distance travelled

=1400m/s=

1.6s

2d

d=1120m

Answer 2

Answer:

1248m

Explanation:

d=s*t

HERE

SPEED = 1560 m/s^2

TIME = 1.6/2= 0.8 SEC

DISTANCE = SPEED * TIME

i. e. 1248m