CD's showing Diffraction

CD's showing Diffraction

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Credit: Phil Degginger/SCIENCE PHOTO LIBRARY

Caption: Compact disc's (CD's) reflecting light, the music layer is coated with a fine film of metal, which follows the depressions exactly. This layer is covered by another layer of transparent plastic, which prevents dust and scratches from affecting the sound quality.

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Keywords: cd, colour, compact discs, diffract, diffracting, diffraction, disc, dvd, information, information storage, interference pattern, laser, light, optical, refracting, refraction, spectral, spectrum

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