What colour of light is obtained when we mix beams of lights of all colour?

White

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Blue

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Green

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Black

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Solution

The correct option is A
White

When white light is passed through a prism, it splits into seven different colours namely, red, orange, yellow, green, blue, indigo and violet. If we do the reverse, that is, mix the beams of lights of all colours, white light is obtained.

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[KCET 2000; BHU 2001]

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