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)`
There blocks of masses m_(1) , m_(2) and m_(3) are connected by may less unstretchable strings on a smooth surface. Tension T_(2) is.
Two bodies at different temperature T_(1) and T_(2) . If brought in thermal contact do not mecesserily settle to the mean temperature (T_(1)+T_(2))//2 .
Three rods of same cross-section but different length and conductivity are joined in series . If the temperature of the two extreme ends are T_(1) and T_(2) (T_(1)gtT_(2)) find the rate of heat transfer H.
Three blocks of masses m_(1),m_(2) and m_(3) are connected by massless strings as shown on a frictionless table. They are pulled with a force T_(3)=40N . If m_(1)=10kg,m_(2)=6kg and m_(3)=4kg the tension T_(2) will be
