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A colorful rainbow and ring-billed gull. A rainbow is an optical phenomenon caused by refraction, internal reflection and dispersion of light in water droplets resulting in a continuous spectrum of light appearing in the sky. The rainbow takes the form of a multicoloured circular arc.
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Oct 19, 2023 · A rainbow is a multicolored arc made by light striking water droplets. Learn about the causes, colors, variations and history of rainbows from National Geographic's encyclopedia article. Find out how rainbows are produced by refraction and reflection of light, and how they depend on the sun's position and the water droplets' size and shape.
Feb 25, 2024 · Learn about the science and history of rainbow, a natural phenomenon caused by the refraction and reflection of light in water droplets. Find out how to observe and distinguish different types of rainbows, such as primary, secondary, and supernumerary bows.
- The Editors of Encyclopaedia Britannica
Learn how rainbows are formed by the refraction and reflection of sunlight inside water drops, and how the color sequence is determined by the angle of incidence. See a ray diagram, a video, and questions and answers on this topic.
- 14 min
- Mahesh Shenoy
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Learn how rainbows are formed by sunlight, water droplets, and optical processes. Discover the colors, shape, and myths of this natural phenomenon.
Mar 14, 2024 · Learn how sunlight and water droplets create the colors of a rainbow. Find out when and where you can see a rainbow, and what makes a double rainbow.