A cylinder rod of length 1, thermal conductivity K and area of cross section A has one end in
Channel: Doubtnut
Date: 2020-07-05

A cylinder rod of length 1, thermal conductivity K and area of cross section A has one end in the furnace at temperature `T_1` and the other end in surrounding at temperature `T_2`. Surface of the rod exposed to the surrounding has emissivity e. Also `T_2=T_s+DeltaT and T_sgt gt DeltaT`. If `T_1-T_s prop DeltaT`,find the proportionality constant.