A slab consists of two parallel layers of copper and brass of the time thickness and having thermal conductivities in the ratio `1:4`. If the free face of brass is at `35^(@)C` and that of copper at `1: sqrt(2.5)`, the temperature of interface is

A slab consists of two parallel layers of copper and brass of the same thichness and having thermal conductivities in the ratio 1:4 If the free face of brass is at 100^(@)C anf that of copper at 0^(@)C the temperature of interface is .

A slab consists of two parallel layers of copper and brass of the same thichness and having thermal conductivities in the ratio 1:4 If the free face of brass is at 100^(@)C anf that of copper at 0^(@)C the temperature of interface is .

A slab consists of two parallel layers of copper and brass of the same thickness and having thermal conductivities in the ratio of 1:4. If the free face of brass is at 100°C and that of copper at 0°C, the temperature of interface is

A slab consists of two parallel layers of copper and brass of same thickness and having thermal conductivies in the ratio 4:1 . If the free face of brass is at 100^(@)C and that of copper of 0^(@)C , the temperature of interface is

The slab shown in the figure consists of two parallel layers of cooper anb brass of same thickness and having thermal conductivites in the ratio 4 : 1 . IF the free face of the brass is at 100^(@)C and that of copper is at 0^(@)C , then the temperature of the interface will be

A compound slab is made of two parallel plates of copper and brass of the same thickness and having thermal conductivities in the ratio 4:1 . The free face of copper is at 0^(@)C . The temperature of the internal is 20^(@)C . What is the temperature of the free face of brass?

A slab consists of two parallel layers of two different materials of same thickness having thermal conductivities K_1 and K_2 . The equivalent conductivity of the combination is

A slab consists of two parallel layers of two different-materials of the same thickness, having thermal conductivities K_1 and K_2 . What is the equivalent thermal conductivity of the slab?