General Science வானவில் எப்படி உருவாகிறது?

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A rainbow is a meteorological phenomenon that is caused by reflection, refraction and dispersion of light in water droplets resulting in a spectrum of light appearing in the sky. It takes the form of a multicoloured circular arc. Rainbows caused by sunlight always appear in the section of sky directly opposite the sun. https://en.wikipedia.org/wiki/Rainbow and also check in ncrt book there is mention that it is caused by dispersion of light and there is no option in your question

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