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A point source emits sound equally in al...

A point source emits sound equally in all directions in a non-absorbing medium. Two points `P` and `Q` are at the distance of `9 meters` and 25 meters respectively from the source. The ratio of amplitudes of the waves at `P` and `Q` is…..

A

`25//9`

B

`9//25`

C

`5//9`

D

`9//5`

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Intensity is inversely proportional to the square of the distance.
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