Published by:
CGP EDU Academic Team
Published on: August 14, 2026
NUMERIC RESPONSE
As per the given figure, two plates A and B of thermal conductivity K and 2K are joined together to form a compound plate. The thickness of plates are 4.0 cm and 2.5 cm respectively and the area of cross-section is 
for each plate. The equivalent thermal conductivity of the compound plate is 
, then the value of α will be 
.
Text Solution
Verified by ExpertsThe correct answer is:
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NUMERIC RESPONSE
(21)
It is given that,
By equating the above equation with 
We get, 
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