Answer: (d) Fig. D
In the case of a concave mirror, an incident ray is parallel to the principal axis passes through F after reflection.
- Concave means rounded or hollowed like the interior of a circle or sphere
- Also called a converging mirror.
- In concave mirrors, the centre of curvature and the reflecting surface fall on the same side of the mirror.
- The focus lies in front of the mirror i.e. focal length, is positive.
- The image formed by a concave mirror is real, inverted and enlarged
- They are used in reflecting telescopes, shaving mirrors, torchlights, etc. as they give a magnified image of the objects.