Published by:
CGP EDU Academic Team
Published on: September 12, 2026
Three rods of identical cross-section and lengths are made of three different materials of thermal conductivity 
and 
respectively. They are joined together at their ends to make a long rod (see figure). One end of the long rod is maintained at 
and the other at 
(see figure). If the joints of the rod are at 
and 
in steady state and there is no loss of energy from the surfac of the rod, the correct relationship between 
and 
is
A
, 
B
C
, 
D
Text Solution
Verified by ExpertsThe correct answer is:
A
JEE Main 2020
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