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Refraction by a Triangular Prism

Different wavelengths refract to different extents so white light will split into its constituent colours when refracted by a triangular prism.This is called dispersion.Violet light refracts the most as it has the shortest wavelength.Red light refracts the least as it has the longest wavelength.

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Specification: AQA Physics (7407), AS-level, 3.3.2.3 Refraction at a plane surface. Topic: Optics.

Key terms in this lesson

Vector quantity
A physical quantity that has both magnitude and direction.

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All 27 lessons in Optics · All AQA AS-level Physics topics