If \( A \) is the amplitude of the waves coming from a point source...

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Counter-Strike: Source
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Counter-Strike: Source (2004)
Duration: 0:34
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If \( A \) is the amplitude of the waves coming from a point source at distance \( r \) then which of the following is correct :
(A) \( A \propto r^{-2} \)
(B) \( A \propto r^{-1} \)
(C) \( A \propto r^{2} \)
(D) \( A \propto r^{1} \)
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