UPSC NDA II 2012 General Ability Paper

Question : 62 of 150

Marks: +1, -0

Yellow colour light is used as fog light because yellow colour

light is most scattered by fog
has the longest wavelength among all colours
has the longest wavelength among all colours except red and orange but the red colour is already used for brake light and stop light whereas orange colour is avoided due to its similarity with red
has the shortest wavelength among all colours not already reserved for other purpose

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