MHT CET Physics question
A metal rod is heated to t°C. A metal rod has length, area of cross-section, Young's modulus and coefficient of linear expansion of 'L', 'A', 'Y' and 'α' respectively. When the rod is heated, the work performed is [MHT-CET 2023]
Answer: (A)
Solution
Strain , so stress ; work done \frac\frac$12(Yα t)(α
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