When an object is placed at the centre of curvature in front of a concave mirror, the characteristics of the image formed are:

Correct option is D

The correct option is: (d) at the centre of curvature, real, inverted and of the same size

• Aconcave mirrorforms an image based on the object's position relative to itsprincipal focus (F)andcentre of curvature (C).

• When the object is placedat the centre of curvature (C), the image is formedat the same point, i.e., atC.

• The image isreal,inverted, andof the same sizeas the object due to symmetrical ray convergence.

• Type of Mirror: Concave (converging mirror).

• Ray Behavior: Parallel rays after reflection pass through the focus; rays through centre reflect back on themselves.

• Image Nature: Real and inverted (can be projected on a screen).

• Image Position: Formed exactly at the centre of curvature.

• Magnification: Magnification (M) = -1 (same size but inverted).

• Use Case: Commonly used in shaving mirrors and dentist’s mirrors when magnified reflection is needed (object closer than C).

• Option (a): Incorrect; object at focus forms image at infinity, not diminished or virtual.

• Option (b): Happens when the object is at focus (F), not at centre (C).

• Option (c): Describes the condition when the object isbetween pole and focus, not at centre of curvature.