Arrange in the correct order the colours of white light obtained after dispersion.

Red

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Blue

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Orange

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Green

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Violet

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Solution

The seven constituent colours are Violet, Indigo, Blue, Green, Yellow, Orange, Red; in that order. This forms the famous abbreviation- VIBGYOR. The individual colours are ordered according to increasing wavelengths. Thus, violet has the shortest wavelength with red having the longest.

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