PHY518: Models of Light Refraction - Rays, Waves and QED

End of semester project by students of the Fall 2020 class offering of PHY518: Waves and Optics for HS Teachers at SUNY Buffalo State Physics. This video discusses introductory Refraction via the three great models of light - Ray (or Geometric) Optics, Wave (or Modern) Optics and QED (Quantum Electrodynamics or Feynman path integral optics).