Radius of curvature (R) = 20 cm
Radius of curvature of the spherical mirror(R) = 2 × Focal length (f)
R = 2f
f= R/2 = 20 / 2 = 10 cm.
Therefore, the focal length of the spherical mirror is 10 cm
Radius of curvature (R) = 20 cm
Radius of curvature of the spherical mirror(R) = 2 × Focal length (f)
R = 2f
f= R/2 = 20 / 2 = 10 cm.
Therefore, the focal length of the spherical mirror is 10 cm