Depth of water in a well is 10 m. A stone is dropped in
the well. How many seconds later the sound of its splash
will be heard? Velocity of sound in air = 330 ms.
give answer in photo and expalin also
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One method for determining the depth of a well is to drop a stone into it and then measure the time it takes until the splash is heard. If d is the depth of the well (in feet) and t1 the time (in seconds) it takes for the stone to fall, then d=16t12, so. t1=d /4.
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