Question

The radius of curvature of a plano convex lens is doubled without changing the
material of medium, it focal length will be
A) double
B) halved
C) remains same
D) insufficient data​

Answer 1

Answer:

if the focal length is double

Explanation:

it is because radius is directly proportional with focal length. r=2f

Answer 2

Answer:

TTYYRER 35450=353%6685557565