Shortcut Methods

7 : Snell’s Law Shortcut for Plane Surfaces

When light passes from one medium to another through a plane surface (e.g., air to glass), Snell’s Law simplifies to: (n1sin(θ1)=n2sin(θ2)), where n1 and n2 are the refractive indices, and θ1 and θ2 are the angles of incidence and refraction, respectively.