IGCSE PHYSICS (201 - Study guides, Class notes & Summaries
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Exam (elaborations)
Definitions And Model Answers - Igcse Physics (2016)|Latest Update|Guaranteed Success
What is reflection? 
When light or other wave rebounds at a boundary between two materials 
 
 
 
What is a virtual image? 
The rays do not actually come from a virtual image. They just appear to come from it. A virtual image cannot be formed on a screen. 
 
 
 
What is refraction? 
When a wave passes from one material to another its speed may change. This may cause a change in direction. 
 
 
 
What is diffraction? 
The spreading out of waves when they pass through a gap or go round the edge of...