An object is placed at a distance of 40 cm in front of a concave mirror of focal length 20 cm. The image produced is:
The radius of curvature of the mirror is double the focal length (R = 2f). The image formed at the centre of curvature of the concave mirror is real, inverted and of the same size.
For the given mirror, the center The object distance is equal to the centre of curvature of the concave mirror.