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MHT CET Physics question

PhysicsThermal Properties of MatterMHT CET

A wall has two layers A and B, each made of different material. Both the layers have same thickness. The thermal conductivity of the material A is thrice that of material B. If under thermal equilibrium the temperature difference across the wall is C, the temperature difference across the layer 'A' is [MHT-CET 2023]

Answer: (A)

Solution

In steady state the same heat current flows through both layers, so and ; hence

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Question ID VK-065944