A plano convex lens of refractive index 
and focal length 
is kept in contact with another plano concave lens of refractive index 
and focal length 
If the radius of curvature of their spherical faces is 
each and 
then 
and 
are related as:
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
JEE Main 2019
From lens maker's formula,
Similarly, for plano-concave lens
Dividing 
by 
we get
or 
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