Two walls of the same thickness and cross-sectional area have thermal conductivities in the ratio 1 : 2. If same temperature difference is maintained across the two faces of both the walls, what is the ratio of heat flow Q1/Q2

Two walls of the same thickness and cross-sectional area have thermal

1.	Two walls of the same thickness and cross-sectional area have thermal conductivities in the ratio 1 : 2. If same temperature difference is maintained across the two faces of both the walls, what is the ratio of heat flow Q1/Q2
A.	1/2
B.	1
C.	2
D.	4
Answer» B. 1