A stone is dropped into a lake from a tower 500 metre high. Taking the speed of sound as 330 m/s, the sound of the splash will be heard by the man approximately after

11.5 seconds

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10 seconds

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14 seconds

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Solution

The correct option is A
11.5 seconds

$t$ = $\sqrt{\frac{2 h}{g}} + \frac{h}{v}$

Substituting the values, we get, t=11.5 second.

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A stone is dropped into a lake from a tower 500 metre high. Taking the speed of sound as 330 m/s, the sound of the splash will be heard by the man approximately after

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A stone is dropped into a lake from a tower 500 metre high. Taking the speed of sound as 330 m/s, the sound of the splash will be heard by the man approximately after

The correct option is A 11.5 seconds t = √2hg + hv Substituting the values, we get, t=11.5 second.

The correct option is A
11.5 seconds

$t$ = $\sqrt{\frac{2 h}{g}} + \frac{h}{v}$

Substituting the values, we get, t=11.5 second.