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Total Internal Reflection - The Critical Angle

A lesson on Total Internal Reflection which extends into the detailed mathematics.

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Refraction and the Ray Model of Light

Useful information driven site which provides details on how light is refracted (including total internal reflection).

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Refraction, Snell's law and total internal reflection

A concise but detailed explanation of refraction. Clear diagrams and worked examples, some harder than others.

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Hits: 5291

Snell's Law

Applet showing refraction of light from medium 1 to medium 2. refractive indices and incident angle can be altered, and total internal reflection demonstrated.

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Hits: 1877

Refraction and total internal reflection

Applet in two parts - the first a fish's view from under water. In the second the position of the cursor is the source of a light ray. Its path from within the water to an observer appears.

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Hits: 1820

Critical Angle

Information on critical angles with links to information on total internal reflection.

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Hits: 1550

Explore Big History

Interactively explore the timeline of the universe.

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Hits: 562

Explaining fibre optics

Short film from the scicast competition explaining how fibre optics work using total internal reflection.

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Hits: 1318

Fowler's Physics

Various applets allowing results to be taken for demonstration purposes.

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Hits: 1274

Line Rider

A fun toy that lets you build a sledge run and then test it out. You'll need a good feel for the laws of motion to get results!

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Hits: 4419

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