Physics - Heat & Thermo Question with Solution | TestHub

A slab of stone of area of $0.36{\mathrm{m}}^2$ and thickness $0.1\mathrm{m}$ is exposed on the lower surface to steam at $100^{\circ }\mathrm{C}$. A block of ice at $0^{\circ }\mathrm{C}$ rests on the upper surface of the slab. In one hour $4.8\mathrm{kg}$ of ice is melted. The thermal conductivity of slab is (Given latent heat of fusion of ice $=3.36\times 10^5\mathrm{J}{\mathrm{kg}}^{-1}$ )NEET 2012 (Mains)