Published by:
CGP EDU Academic Team
Published on: August 13, 2026
Three rods of same dimensions are arranged as shown in figure they have thermal conductivities 
and 
. The points 
and 
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
Rate of flow of heat along PQ
Rate of flow of heat along PRQ
Effective conductivity for series combination of two rods of same length
So 
…..(ii)
Equating Eq. (i) and (ii) 
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