Question

write relationships between center of curvature and radius of curvature​

Answer 1

Answer:

Answer. The focal length (f) of a lens is the distance between the center of the lens and the point at which the reflected light, of a beam of light traveling parallel to the center line, meets the center line (principal axis). The radius of curvature (r) is the radius of the lens that forms a complete sphere

Explanation:

I hope it will help you