What Causes a Rainbow?

Answer

Rainbows are caused by the splitting of white sunlight into its component colors by raindrops. The rainbow will usually occur when sunshine and raindrops cross paths. It is always seen in the opposite direction in the sky from the sun.
Q&A Related to "What Causes a Rainbow"
Light travels in waves. When two waves of light meet, they can be in phase or out of phase. If they're in phase, their peaks line up and add together to make an even bigger wave.
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All rainbows are circular or consist of part of a circle with the sun at the center (with the sun either in front or behind you. The rainbow when the sun is in front of you is caused
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Each droplet of rain is actually a sphere that refracts white light from the sun into all the different colors of the spectrum. Each visible color comes off at a different angle from
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Rainbows aren't caused by clouds directly. Rainbows are caused by the splitting of white
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4 Additional Answers
Ask.com Answer for: what causes a rainbow
Rainbows form when sunlight is refracted into separate colors by water droplets. We usually see rainbows as arcs due to each individual color refracting at different angles.
Though a rainbow spans a continuous spectrum of colors, the human eye usually perceives bands of seven distinct colors: red, orange, yellow, green, blue, indigo and violet.
Rainbows are a refraction phoenomenon where the presence of sunlight during, before but mostly after rainfall, the sun refracts light and it manifests as a spectrum of light across the sky which usually consists the ROYGBIV colours.
A rainbow is caused when the light outside passes through the tiny drops of water in the atmosphere. The light is reflected through the water and comes out as a part of the color spectrum. You can find more information here: http://www.wisegeek.com/why-do-rainbows-form.htm
A rainbow is caused when raindrops act as a spectrum to separate the sun's white light. You see, white light is made out of all different colors: red, orange, yellow, green, blue, and purple (indigo).
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