Rainbow is caused by refraction of light through the droplets that float in the air. When we see with the naked eye to see the sun is white, but the reality is that solar is composed of light in seven colors, including purple, blue, green, yellow, orange and red when sunlight hits the surface of the drops of rain, it will. refraction of light is split into different colors. Each light is refracted color with different angles. Depending on the wavelength of the light wavelength, but most are deflected by a minimum while at the shortest wavelength of violet light is refracted as possible. Rainbow caused by the reflection of sunlight by water droplets in a cloud floating in the sky. The red light from the top to the bottom >>>>>>> purple.
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