Discussion on Heat and Thermodynamics


 

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Posted on: 02:40:10 AM on August 29, 2012
Posted By:
Anirban
Two rods of length L2 and coefficient of linear expansion α2 are connected freely to a third rod of length L1and coefficient of linear expansion α1 to form an isosceles triangle.The arrangement is supported on a knife edge at the middle point of L1 which is horizontal.The apex of the isosceles triangle is to remain at a constant distance from the knife edge if (A) L1/L2 = α2/α1 (B) L1/L2 = √(α2/α1) (C) L1/L2 = 2 α2/α1 (D) L1/L2 = 2√(α2/α1)


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