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A splash in heard 3.12 s after a stone i...

A splash in heard `3.12` s after a stone is dropped into a well 45 m deep. The speed of sound in air is `[ g =10 ms ^(-2)]`

A

`330ms^(-1)`

B

`375ms^(-1)`

C

`340ms^(-1)`

D

`346ms^(-1)`

Text Solution

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The correct Answer is:
B
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