- to examine the use Fermat's Principle of least-time to derive the Law of Reflection and the Law of Refraction;
- to experimentally determine the angle at which rainbows appear in the sky;
- to understand geometric properties of rainbows by analyzing the the passage of light through a raindrop;
- to apply our knowledge of derivatives to a problem in the physical sciences;
- to better understand the relationship between the geometric, symbolic, and numerical representation of derivatives;

Frederick J. Wicklin <fjw@geom.umn.edu> Paul Edelman <edelman@math.umn.edu>

This lab is based on a module developed by Steven Janke and published
in *Modules in Undergraduate Mathematics and its Applications*, 1992.

Last modified: Wed Oct 18 12:17:16 1995