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Two adjacent piano keys are struck simultaneously. The notes emitted by them have frequencies n1 and n2.The number of beats heard per second is [CPMT 1974, 78; CBSE PMT 1993] |
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Answer» Two adjacent piano keys are struck simultaneously. The notes emitted by them have frequencies n1 and n2.The number of beats heard per second is [CPMT 1974, 78; CBSE PMT 1993] |
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