A mirror is a reflective surface that bounces off light, producing either a real image or a virtual image. When an object is placed in front of a mirror, the image of the same object is seen in the mirror. The object is the source of the incident rays and the image is formed by the reflected rays. Based on the interaction of light, the images are classified as either a real image or a virtual image. A real image occurs when the light rays actually intersect while virtual images occur due to the apparent divergence of light rays from a point.
Ray diagrams help us trace the path of the light for the person to view a point on the image of an object. Ray diagram uses lines with arrows to represent the incident ray and the reflected ray. It also helps us trace the direction in which the light travels.