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A steel wire of length 1 m, mass 0.1 kg and uniform cross-sectional area 10−7m2 is rigidly fixed at both ends. The temperature of the wire is decreased by 80/3∘C. If transverse waves are set up in the wire, the frequency (in Hz) is ___ . The Young’s modulus of steel = 2×1011Nm−2 and coefficient of linear expansion of steel = 1.2×10−5per∘C. |
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Answer» A steel wire of length 1 m, mass 0.1 kg and uniform cross-sectional area 10−7m2 is rigidly fixed at both ends. The temperature of the wire is decreased by 80/3∘C. If transverse waves are set up in the wire, the frequency (in Hz) is The Young’s modulus of steel = 2×1011Nm−2 and coefficient of linear expansion of steel = 1.2×10−5per∘C. |
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