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[" The average power transmilted through a given point on a string supporiting a sine wave ho "0,2v" ."],[" When the amplitude of the wave is "2mm" .What power will be transmited through this point the "],[" amplitude is increased to "3mm" ."],[[" (A) "0.2W," (B) "0.25W," (C) "0.45W," (D) None "]]

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