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Refraction at a Boundary

AQA AS-level PhysicsOpticsLesson 6 of 27

Refraction occurs at the boundary between two transparent substances. Consider refraction at the boundary between two substances where the light passes from a substance where speed of light is c1 and goes into a substance where the speed of light is c2:

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Key terms in this lesson

Refraction
The change of direction of a wave as it crosses a boundary between two media in which it travels at different speeds.

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