This module uses Fermat's least-time principle for the path of light to derive the laws of reflection and refraction, and then analyzes the passage of light through a raindrop to explain quantitatively the phenonmenon of the rainbow. An appendix is included, which treats diffraction theory.
Table of Contents:
THE PROBLEM: EXPLAINING THE RAINBOW
SOME EARLY HISTORY
THE RAINBOW ANGLE
THE SECONDARY BOW
The Wave Nature of Light
The Diffraction Theory of the Rainbow
SOLUTIONS TO THE EXERCISES
ABOUT THE AUTHOR
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