(a) Case 2 images for mirrors are formed when a converging mirror has an object closer to it than its focal length. It also helps to trace the direction in which light travels. When the object is placed between the centre of curvature and principal focus. When an object is placed at the focus, the real image is formed at infinity. When the object is placed at infinity, the two rays AB and DE running parallel to the principal axis get reflected at point B and E respectively and intersect each other at the principal focus F on the principal axis. Virtual, erect, and diminished images are always formed with convex mirrors, irrespective of the distance between the object and the mirror. When the object AB is placed at the centre of curvature C, then a ray of light AD which is parallel to the principal axis and another ray AE which pass through the principal focus intersect each other after reflection at point A’ just below the position of the object. We use them because we know the paths of them. Concave mirrors are also known as a converging mirror since the rays converge after falling on the concave mirror, while the convex mirrors are known as diverging mirrors as the rays diverge after falling on the convex mirror. This kind of mirror is known as a concave mirror. 6. 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