To construct the ray diagram showing the position, orientation and size of the image.
Rules of drawing ray diagram:
1) The incident line parallel to the principal axis passes through focus after reflection.
2) The incident line passing through focus will travel parallel to the principal axis after reflection.
3) The incident ray passing through the centre of curvature passes undeviated after reflection.
The image can be drawn using the rules of the ray diagram.
The diagram is as follows
Here, the blue arrows indicate incident rays of light while the green arrows indicate
reflection.
The image is drawn from the intersection of reflected rays and the principal axis.
The image is shown in red.
The image obtained is real, inverted and the same size as the object.