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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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Hits: 3901

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: 5555

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: 1958

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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Critical Angle

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

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Hits: 1596

Explore Big History

Interactively explore the timeline of the universe.

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Hits: 621

Explaining fibre optics

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

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Hits: 1375

Squishy Circuits

An activity to do at home to explore the world of circuits. Make two types of dough, one that carries electricity and one that doesn't, to create all sorts of circuits and explore how they work.

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Hits: 81

Fowler's Physics

Various applets allowing results to be taken for demonstration purposes.

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