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Two sound waves emerging from a source reach a point simultaneously along two paths. When the path difference is `12 cm ` or `36 cm`, then there is a silence at that point. If the speed of sound in air be `330 m//s`, then calculate maximum possible frequency of the source.

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Correct Answer - A::C
`Deltax = lambda//2 = (nu)/(2 f)`
`:. f = (nu)/(2 Deltax) = (330)/(2(0.12)) = 1375 H_(Z)`

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