Two slabs are of the thicknesses
and
. Their thermal conductivities are
and
respectively. They are in series. The free ends of the combination of these two slabs are kept at temperatures
and
. Assume
. The temperature
of their common junction is
Text Solution
Verified by ExpertsThe correct answer is:
C

For the first slab
Heat current, 
For the second slab
Heat current, 
As the slabs are connected in series same amount of heat current flows through the slabs.


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