6A40.40 Variable Index of Refraction Tank

Concepts

Refractive index gradient, Fermat's principle, law of refraction

Overview

Light bends when travelling through a concentration gradient of sugar in water. The top layer of liquid is pure water while the bottom layer is concentrated sugar water. In these layers, there is no change in refractive index and no bending of light. In the middle, a gradient forms.

Downloads

License: CC BY-NC 4.0. Non-commercial use allowed with attribution.

* variableindex.mp4
Demo video download.