find the solution to the above question
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it is 1 .25 seconds in second one and in first 5second
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as speed in air is 340m/s time=1700/340=5s;
speed in water is 1360m/s so time =1700/1360=1.25s
speed in water is 1360m/s so time =1700/1360=1.25s
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