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physical phenomena > process > physical process > optical process > radiation modification > radiation direction modification > dispersion
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dispersion comparison table
Subject is a kind of has definition
radiation direction modificationradiation modification 
dispersionradiation direction modificationResolution of white light into its component wavelengths, either by refraction or by diffraction.

Next radiation direction modificationgravitational lensing    Upradiation direction modification    Previous radiation direction modificationdiffraction