Lesson Plan: Refracted Light Ray Paths Physics

This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to analyze refraction that involves multiple boundaries, multiple rays, and boundaries at arbitrary angles to each other.


Students will be able to

  • determine the paths of light rays that are refracted at multiple boundaries that may be at arbitrary angles to each other,
  • determine the differences between paths of light rays that move through the same object from different initial positions and/or traveling in different directions,
  • apply Snell’s law to light rays that pass through prisms.


Students should already be familiar with

  • Snell’s law.


Students will not cover

  • the equation for deviation due to a prism.

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