The splash of sound was heard 5.35 s aft...

The splash of sound was heard `5.35 s` after dropping a stone into a well 122.5 m deep. Velocity of sound in air is

`350 cm//s`

`350 m//s`

`392 cm//s`

`0 cm//s`

Text Solution

Verified by Experts

The correct Answer is:

`t=sqrt((2h)/(g))+(h)/(v_("sound"))`

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