Question

Find the depth of the sea if the speed of the ultrasound is 1500 m/s and the time taken for ultrasound to come back to the ship is 8 secs
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Answer 1

Answer:

Speed of ultrasound (v)=1500m/s

Time taken for ultrasound to come back(t)=8s

$Depth \: of \: sea = \frac{v \times t}{2}$

Depth of sea=(1500×8)/2 m

Depth of sea=6000 m = 6 km

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Answer 2

Answer:

Given:

Speed of ultrasound = 1500 m/s

Time taken for the sound to come back = 8 seconds.

To find:

Depth of sea bed

Concept:

Ultrasound emitted from the ship will reach the ocean bed and then reflects back. Finally the reflected sound is received at the ship.

Calculation:

Total distance = speed × time

=> Total dist. = 1500 × 8

=> Total dist. = 12000 metres = 12 km

Hence depth of ocean = 12/2 = 6 km.

Hence answer is 6 km