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Lenses, Mirrors & Images

Try this: Make the image exactly as tall as the object.

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About this simulation

Trace an image into existence with three rays, then find out whether any light is really there.

Taught in Lenses, Mirrors & Images

  • thin lens equation
  • ray tracing
  • real and virtual images
  • magnification

How this runs

The equations of motion are integrated in your browser at a fixed timestep, so the numbers do not depend on your screen’s refresh rate. Nothing is sent to a server. Use Share setup to copy a link that reproduces exactly what you are looking at.