Snell's Law of Refraction

[@harendravishnudev]

I love what you do!

[@PhysicsclassroomVideos]

I'm glad you do. Thanks for the shout out.

[@Applebargain]

Why does white light passing through a prism cause dispersion? Why do different wavelengths of light refract at different angles?

[@ManOleg38]

Refraction have a Ferma principle underlying it and Eikonal math form , not a "Snells Law" at all.

[@PhysicsclassroomVideos]

There is no contradiction between Snell's Law and Fermat's principle: scipp.ucsc.edu/~haber/ph5B/fermat09.pdf