Published by:
CGP EDU Academic Team
Published on: August 21, 2026
Three identical heat conducting rods are connected in series as shown in the figure. The
rods on the sides have thermal conductivity 
while that in the middle has thermal conductivity 
. The left end of the combination is maintained at temperature 
and the right end at 
. The rods are thermally insulated from outside. In steady state, temperature at the left junction is 
and that at the right junction is 
. The ratio 
is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
(ii) By ; (iii) Equation ; (i)
Multiply equation (ii) By '3'
… ..(iii)
Equation (i) - (iii)
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