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Physics
Light and the electromagnetic spectrum
Light, Lenses and Reflection
Ray Diagrams and TIR
Ray Diagrams and TIR
What You Need to Know
Explain reflection, refraction and total internal reflection (TIR) with the aid of ray diagrams, including the law of reflection and critical angle.
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Practise with Past Papers
Key Terms & Definitions
Previous Section: Waves
Core Practical: Waves in Solid and Fluid
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Specular and Diffuse Reflection
