Question : The light of which of the following colours has a wavelength longer than that of Yellow?
Option 1: Green
Option 2: Blue
Option 3: Orange
Option 4: Violet
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Correct Answer: Orange
Solution : The correct answer is Orange.
The wavelength of the orange colour is longer than that of the yellow. The order of colours of light is called the visible light spectrum, arranged from the shortest wavelength to the longest. This process of white light splitting into its constituent colours is termed dispersion.
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