Question

Laws of refraction by Huygens principle

Answer 1

Law of Reflection from Huygens' Principle. ... Huygens' principle must be modified to accommodate the case in which a wavefront, such as AC, encounters a plane interface, such as XY, at an angle. Here the angle of incidence of the rays AD, BE, and CF relative to the perpendicular PD is i.

Answer 2

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