+Dispersion describes how something spreads out or separates. In physics, it often refers to the phenomenon where the [Phase Velocity](/wiki/phase_velocity) of a wave depends on its [Frequency](/wiki/frequency), causing different components to travel at different speeds. This leads to the separation of light into its constituent colors by a prism.
+## See also
+- [Wave](/wiki/wave)
+- [Optics](/wiki/optics)
+- [Refraction](/wiki/refraction)
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