Question

the relation between focal length and radius of curvature of a spherical mirror is.​

Answer 1

focal length =radius / 2

hope it is clear to u

Answer 2

focal length is the distance between focus and optical center
and radius of curvature is the radius of spherical mirror The relationship between the focal length f and radius of curvature r is r = 2f. Consider a ray of light AB,parallel to the principal axis and incident on a spherical mirror at point B. The normal to the surface at point F is CF and CP = CF = R, is the radius of curvature.