One end of a thermally insulated rod is kept at a temperature `T_1` and the other at `T_2`. The rod is composed of two sections of length `l_1 and l_2` and thermal conductivities `K_1 and K_2` respectively. The temperature at the interface of the two section is

One end of thermally insulated rod is kept at a temperature T_(1) and the other at T_(2) . The rod is composed of two section of length l_(1) and l_(2) thermal conductivities k_(1) and k_(2) respectively. The temerature at the interface of two section is

One end of thermally insulated rod is kept at a temperature T_(1) and the other at T_(2) . The rod is composed of two section of length l_(1) and l_(2) thermal conductivities k_(1) and k_(2) respectively. The temerature at the interface of two section is

One end of thermally insulated rod is kept at a temperature T_(1) and the other at T_(2) . The rod is composed of two section of length l_(1) and l_(2) thermal conductivities k_(1) and k_(2) respectively. The temerature at the interface of two section is

One end of thermally insulated rod is kept at a temperature T_(1) and the other at T_(2) . The rod is composed of two section of length l_(1) and l_(2) thermal conductivities k_(1) and k_(2) respectively. The temerature at the interface of two section is

One end of a rod, enclosed in a thermally insulating sheath, is kept at a temperature T_1 while the other, at T_2 . The rod is composed of two sections whose lengths are l_1 and 1_2 and heat conductivity coefficients x_1 and x_2 . Find the temperature of the interface.

Two rods A and B are of equal lengths. Their ends of kept between the same temperature and their area of cross-section are A_(1) and A_(2) and thermal conductivities K_(1) and K_(2) . The rate of heat transmission in the two rods will be equal, if

Two rods A and B are of equal lengths. Their ends are kept at the same temperature difference and their area of cross - sections are A_(1) and A_(2) and thermal conductivities k_(1) and k_(2) . The rate of heat transmission in two rods will be equal, if . . . .. . .

Two rods A and B are of equal lengths. Their ends of kept between the same temperature and their area of cross-section are A_(1) and A_(2) and thermal conductivities K_(1) and K_(2) . The rate of heat transmission in the two rods will be equal, if