JEE Main 201910 Jan, Morning shiftPhysicsMediumProperties of Solids and Liquids184× since 2002
A heat source at T = 10³ K is connected to another heat reservoir at T = 10² K by a copper slab which is 1 mthick. Given that the thermal conductivity of copper is 0.1 WK^–1m^–1, the energy flux through it in the steady state is -