JEE AdvancedMedium
Q.A convex lens of focal length f is placed in contact with a concave lens of focal length 2f. The combination behaves as
a
convex, F=2f
b
concave, F=-2f
c
convex, F= f/2
d
plane glass
Correct Answer: Option B
The correct solution involves applying the fundamental concept to derive the final value step by step...