# Three copper blocks of masses M_(1), M_(2) and M_(3) kg respectively are brought into thermal contact till they reach equlibrium. Before contact, th

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Three copper blocks of masses M_(1), M_(2) and M_(3) kg respectively are brought into thermal contact till they reach equlibrium. Before contact, they were at T_(1), T_(2), T)(3),(T_(1)gtT_(2)gtT_(3)). Assuming there is no heat loss to the surroundings, the equilibrium temperature T is (s is specific heat of copper)
A. T=(T_(1)+T_(2)+T_(3))/(3)
B. T=(M_(1)T_(1)+M_(2)T_(2)+M_(3)T_(3))/(M_(1)+M_(2)+M_(3))
C. T=(M_(1)T_(1)+M_(2)T_(2)+M_(3)T_(3))/(3(M_(1)+M_(2)+M_(3))
D. T=(M_(1)T_(1)+M_(2)T_(2)+M_(3)T_(3))/(M_(1)+M_(2)+M_(3))

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