Where must the angle of incidence and angle of refraction always be measured from?
The refracted ray (the transmitted ray beyond the boundary).
The boundary (the surface separating the two materials).
The normal (the imaginary line at 90 degrees to the boundary).
The incident ray (the incoming ray approaching the boundary).
Flashcards for Edexcel AS Level Physics Refraction and total internal reflection, covering the key terms and definitions you need to recall. 21 cards, matched to the Edexcel AS Level Physics (8PH0) specification.
