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The Position of a Mirror Image

With this dynamic model it is possible to determine the position of the mirror image. Visualised rays from object point O hit the mirror axis. At every point P, the mirror reflects the rays according to the law of reflection. The extensions of the reflected rays intersect behind the mirror.

Instructions

  • Put the model in front of a plane mirror as described on the AR instructions page
  • Place an object (for example a coin) in front of the mirror
  • Align the blue mirror axis with the real mirror and point O with the object
  • Add more rays by moving the slider p and see where the extensions intersect

Possible Result

Possible Result
Experimental setup viewed through a smartphone during an AR experiment concerning image formation behind a plane mirror.