The image formed by a concave mirror is real, inverted and highly diminished (much smaller than the object). The object must be:

The image formed by a concave mirror is virtual, erect and magnified. The position of object is :

The image formed by a concave mirror is real, inverted and of the same size as the object. The position of the object must then be:

The angle of incidence for a ray of light passing through the centre of curvature of a concave mirror is:

In the concave reflector of a torch, the bulb is placed: