Question

❌A sonar device on a submarine sends out a signal and receives an echo 5 s later. Calculate the speed of sound in water if the distance of the object from the submarine is 3625 m.❌

Answer 1

Answer:

A sonar device on a submarine sends out a signal and receives an echo 5 seconds later.Calculate the speed of sound in water if the distance of the object is 3625m.

Answer 2

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1. Time taken to hear the echo, t = 5 s
2. Distance of the object from the submarine, d = 3625 m
3. Total distance travelled by the sonar waves during the transmission and reception in
4. water = 2d
5. Velocity of sound in water,
6. v= (2d/t) = (2 x 3625) / 5 = 1450 m/s

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