JEE MainMedium
Q.A concave lens of focal length 20 cm is placed in contact with a plano-convex lens of focal length 15 cm. The power of combination is
a
-1/60 D
b
1/60 D
c
-1/300 D
d
1/300 D
Correct Answer: Option A
The correct solution involves applying the fundamental concept to derive the final value step by step...