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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 point `P` and `Q` are at distance of `2 m` and `3 m` respectively from the source. The ratio of the intensities of the wave at `P` and `Q` is :

A

`9 : 4`

B

`2 : 3`

C

`3 : 2`

D

` 4 : 9`

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The correct Answer is:
A
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