One end of a rod, enclosed in a thermally insulating sheath, is kept at a temperature `T_1`
Channel: Doubtnut
Date: 2020-08-16

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.