+A rainbow is a beautiful optical phenomenon, appearing as a multicolored arc across the sky. It forms when [sunlight](/wiki/Sunlight) is refracted and reflected by [water droplets](/wiki/Water_Droplet) in the [atmosphere](/wiki/Atmosphere), creating a spectrum of color.
+## See also
+- [Spectrum](/wiki/Spectrum)
+- [Optics](/wiki/Optics)
+- [Color](/wiki/Color)
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