Light Scattering

When light passes through a medium that is not perfectly homogeneous, the irregularities in the medium scatter some of the light in all directions. Even the molecules of air are large enough to scatter light; in 1871, Lord Rayleigh showed that this accounts for the blue sky.

See also: Light, Rayleigh Scattering, Scattering, Tyndall Effect.

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Subjects: Optics Physics