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Question

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

A
Red
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B
Blue
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C
Orange
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D
Green
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E
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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