One of the distinctive and interesting features of teaching and learning about light is the way in which ideas and...

Physics Narrative 11-14

An important point to be aware of here is that a ray diagram is a theoretical construction. It something that you draw for a...

Physics Narrative 11-14

Ray diagrams are a predictive model: they are not a representation of beams of light. By following the rules for drawing the...

Physics Narrative 11-14