Summarizing Image Formation by Mirrors

Image Formation by Mirrors Summary

  • The characteristics of an image formed by a flat mirror are: (a) The image and object are the same distance from the mirror, (b) The image is a virtual image, and (c) The image is situated behind the mirror.
  • Image length is half the radius of curvature.

    \(f=\cfrac{R}{2}\)

  • A convex mirror is a diverging mirror and forms only one type of image, namely a virtual image.

Glossary

converging mirror

a concave mirror in which light rays that strike it parallel to its axis converge at one or more points along the axis

diverging mirror

a convex mirror in which light rays that strike it parallel to its axis bend away (diverge) from its axis

law of reflection

angle of reflection equals the angle of incidence

This lesson is part of:

Geometric Optics

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