Save guides, add subjects and pick up where you left off with your BBC account. A ray diagram shows how light travels, including what happens when it reaches a surface. In a ray diagram ...

Derivations, formulas, ray diagrams, and important concepts from ray optics and optical instruments are vital for scoring high marks in Class 12 Physics. We understand that it is difficult for ...

eg a light ray changes direction when refracted by a lens. of light. a protractor is used. Remember to use a ruler and a sharp pencil. The diagram below shows reflection in a plane mirror.