BBC

Reflection and refraction of light - CCEA

Refraction close refractionProcess by which a wave changes speed and sometimes direction upon entering a denser or less dense medium, eg a light ray changes direction when refracted by a lens. of ...
GIGAZINE

'Physically based rendering from first principles' that clearly explains the basics of ...

Chapter 1: What is light? There was a mystery in that assuming either light is a wave or a particle would result in contradictory phenomena, but today quantum electrodynamics is recognized as the most ...
BBC

Critical angle and total internal reflection (Higher tier only) - CCEA

Refraction close refractionProcess by which a wave changes speed and sometimes direction upon entering a denser or less dense medium, eg a light ray changes direction when refracted by a lens. from a ...