Three rods of same dimensions are arranged as shown in figure they have thermal conductivities 
and 
. The points P and Q are maintained at different temperatures for the heat to flow at the same rate along PRQ and PQ then which of the following option is correct?
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
The given arrangement of rods can be redrawn as follows
It is given that 
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