A composite wall consists of two plates A and B placed in series normal to the flow of heat. The thermal conductivities are and and the specific heat capacities are and for plates A and B respectively. Plate B has twice the thickness of plate A. At steady state, the temperature difference across plate A is greater than that across plate B, when

A composite wall consists of two plates A and B placed in series norma

1.	A composite wall consists of two plates A and B placed in series normal to the flow of heat. The thermal conductivities are and and the specific heat capacities are and for plates A and B respectively. Plate B has twice the thickness of plate A. At steady state, the temperature difference across plate A is greater than that across plate B, when
A.	>
B.	<
C.	< 0.5
D.	>2
Answer» D. >2

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