Q6 of 27 Page 83

Three copper blocks of masses M1, M2 and M3 kg respectively are brought into thermal contact till they reach equilibrium. Before contact, they were at T1, T2, T3 (T1 > T2 > T3 ). Assuming there is no heat loss to the surroundings, the equilibrium temperature T is (s is specific heat of copper)

It is given that there is no heat loss in the surrounding

and equilibrium temperature in the system is T.


It is also given s is the specific heat of the copper


Let us assume


∴ heat loss by = heat gain by + heat gain by


⇒


⇒


∴


option (b) is correct.

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