Two identical rectangular strips, one of copper and the other of steel – InterviewSolution

1.	Two identical rectangular strips, one of copper and the other of steel, are rivetted together to form a bimetallic strip (αcopper > αsteel). On heating, this strip will(a) remain straight(b) bend with copper on convex side(c) bend with steel on convex side(d) get twisted.
Answer» (b) bend with copper on convex side

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