If the focal length of a spherical mirror is 12.5cm. Its radius of curvature will be
If the focal length of a spherical mirror is 12.5 cm, its radius of curvature will be : (a) 25 cm (b) 15 cm (c) 20 cm (d) 35 cm
The focal length of a spherical mirror of radius of curvature 30 cm is : (a) 10 cm (b) 15 cm (c) 20 cm (d) 30 cm
The radius of curvature of a spherical mirror is 20 cm. What is its focal length?