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A metal rod lenth `L_(0)` whose coefficient of linear expansion `alpha = 10^(-3) ^(0)C^(-1)` is heated such that its temperature changes by `1000K` assuming `alpha` is constant during the temperature change `(e =2.7)`.Which of the following statements are trueA. Final length of the rod is greater than 2L.B. Final length of the rod is greater than 2.5 LC. Final length of the rod is greater then 3LD. increase in the length due to heating is L |
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Answer» Correct Answer - A::B `alpha=(1)/(L)(dL)(dT)` `int10^(-3)dT=int(dL)/(L)` `L_(f)=2.7L` |
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