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:(a) at the focus (b) between the centre of curvature and focus(c) at the centre of curvature (d) beyond the centre of curvature

(c) at the centre of curvature

Explanation

For an object placed at the centre of curvature $(C)$, the image formed by a concave mirror is real and inverted, of the same size as the object and at the centre of curvature $(C)$.