What is the relation between the focal length and radius of curvature of a spherical mirror? Calculate the focal length of a spherical mirror whose radius of curvature is 25cm.
ScienceClass 10ICSEAnswered 27 Mar 2026
Answer
The relation between the focal length and the radius of curvature of a spherical mirror is: f = R/2.
Given,
R = 25cm f = ?
We know that, f = R/2 Therefore, f = 12.5cm