Under which of the following conditions a concave mirror can form an image larger than the actual object?
When an object is placed between the focus and center of curvature
Concave mirror:
When a hollow spherical is divided into pieces and the outside surface of each cut portion is colored, it forms a mirror, well with the interior surface reflecting. A concave mirror is a name given to this sort of mirror.
Image formation:
Therefore, option C is the correct choice.