Lenses and mirrors are shown in profile on ray diagrams. When two plane mirrors are joined at a 90 o angle, three virtual images are produced. Geometrically, the object and the three images lie at the corners of a rectangle whose centre is the line of intersection of the mirrors. Two reflections occur to form the central image. Two mirrors placed at an acute angle to one other produce a kaleidoscopic effect, with multiple images formed.
N approaches infinity.
Identify the characteristics of an image formed by a plane mirror. Distinguish between a real and a virtual image. Identify some optical systems which produce either a real or a virtual image. Draw ray diagrams neatly, accurately, and to some appropriate scale. Apply the correct use of solid and dotted lines on ray diagrams.