A metal rod is fixed rigidly at two ends so as to prevent its thermal expansion If L a and Y respectively denote the length of

Question

A metal rod is fixed rigidly at two ends so as to prevent its thermal expansion If L a and Y respectively denote the length of the rod coefficient of linear thermal expansion and Young s modulus of its material then for an increase in temperature of the rod by AT the longitudinal stress developed in the rod is AMU 2014 a inversely proportional to a b inversely proportional to Y c directly proportional to AT Y d independent of L

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