Published by:
CGP EDU Academic Team
Published on: September 12, 2026
A bimetallic strip is formed out of two identical strips, one of copper and other of brass. The coefficients of linear expansion of the two metals are 
and 
. On heating the temperature of the strip goes up by 
and the strip bends to form an arc of radius of curvature 
. Then 
is
A
independent of 
B
independent of 
C
proportional to 
D
inversely proportional to 
Text Solution
Verified by ExpertsThe correct answer is:
D
Let 
be the initial length of each strip before heating.
Length after heating will be
and 
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