Lepidlll the working and application of a sonar.
20. 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.
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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. Velocity of sound in water, v= 2d/t = 2 x 3625/5 = 1450 ms-1.
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