A rainbow forms when sunlight is refracted by spherical water droplets in the atmosphere, producing the primary arcs of colour.
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Photo credit: © Encylopaedia Britannica / Alamy / Afripics
License: Licensed
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Keywords: arc, arcs, atmosphere, atmospheric, bending, color, colour, colour., diagram, dispersion, droplets, effects, environment, figure, forms, illustration, illustrations, incident, light, nature, optical, optics, perception, phenomenon, physics, primary, producing, rain, rainbow, ray, reception, reflection, refracted, refraction, science, semicircle, sight, spectrum, sphe, spherical, sunlight, vertical, visible, vision, water, wavelength, weather
