Why does white light create the colours of the rainbow?
by 
betony24.COAT with red clouds.RIP itachi
ANSWERS: 2
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Because when the different wave lengths are broken up by a prism from longest distance between waves(red light) and the smallest waves (violet)
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Its actually the colours of the rainbow that create the white light!. Truly 'white' light doesnt really exist, in exactly the same way as the screen youre reading this from can only ever create the 3 primary colors, red, blue and green (try sneezing or spraying mist onto the screen, the little droplets will magnify them for you). When these pixels of light are really close together, our eyes do a nice job of 'averaging' the colors out. In this way we perceive the 3 colors as white, in the same way as we perceive the 7-rainbow colors as white. ('white' can be made various ways). You can (re)create the rainbow colors FROM white light simply by spatially separating the colors using a transparent triangular prism, or by looking through a mist-of water spray with the white light shining from BEHIND you. This is exactly how a rainbow works.
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