Heat And Thermodynamics

In a steady state, the temperature at the end \(A\) and end \(B\) of a \(20 \mathrm{~cm}\) long rod \(A B\) are \(100 \Upsilon\) and \(0^{\circ} \mathrm{C}\). The temperature of a point \(9 \mathrm{~cm}\) from \(A\) is