INCIDENT RAY - A RAY SHINING ON A SURFACE, APPARENT DEPTH - AN EFFECT OF REFRACTION, LIGHT RAY - A THIN STREAM OF LIGHT, REFLECTION - LIGHT BOUNCING OFF A SHINY SURFACE, NORMAL LINE - A LINE DRAWN AT RIGHT ANGLES TO A SURFACE, REFRACTION - LIGHT CHANGING DIRECTION AS IT MOVES BETWEEN MATERIALS,

by Anonymous

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