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An object is brought from a far distance...

An object is brought from a far distance towards a concave mirror. How do the nature, position and size of image change?

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When object is very far from the concave mirror, its image is at the focus and it is real, diminished, and inverted. As the object is brought towards the mirror, the image shifts away from the mirror and its size increases, but it remains smaller than the object. When the object is at centre of curvature of mirror, the image is also at the centre of curvature and it is of size equal to the size of the object. By further bringing the object, towards the mirror the image gets magnified and it moves away from the centre of curvature. When object is at focus of mirror, the image is at infinity. The image remains real and inverted. If the object is further moved towards the mirror, the image now becomes virtual, erect and magnified and it is formed behind the mirror.
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