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MHT CET Physics question

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A given metal wire has length 1 m, linear density 0.6 kg/m and uniform cross-sectional area m is fixed at both ends. The temperature of wire is decreased by C. The fundamental frequency of the transverse wave is N/m, coefficient of linear expansion of metal is C [MHT-CET 2022]

Answer: (A)

Solution

The contraction is prevented by the clamps, so the strain is and

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Question ID VK-070512