An ultrasonic wave is sent from a ship towards the bottom of the sea. It is found that the time interval between the sending & receiving of the wave is 1.6 s. What is the depth of the sea, if the velocity of sound in the seawater is 1400 m/s?
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Answer:
0.8x1400=1120m
Explanation:
Time taken to reach depth is half of total time
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