White light is what the eye sees when wavelengths of all colours reach the eye.
It is a combination of Red, Blue and Green wavelengths of light, that is perceived as white.
Just light in general until it comes into contact with a prism or drop of water
It's all the colors of the rainbow
White light is a mixture of all visible colors, primarily red, green, and blue wavelengths. When combined, these colors are perceived as white. A prism can separate white light into a spectrum, revealing its individual colors.
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