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A stone is dropped into a well. If the d...

A stone is dropped into a well. If the depth of water below the top be `h` and velocity of sound is `v` then the splash in water is heard after `T` sec. Then:

A

`T=2h//v`

B

`T=sqrt((2h)/(g))+(h)/(v)`

C

`T=sqrt((2h)/(g))+(h)/(2v)`

D

`T=sqrt((h)/(2g))+(2h)/(v)`

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The correct Answer is:
B
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