UPSC NDA II 2013 General Ability Paper

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Question : 134 of 150

Marks: +1, -0

White light while passing through a glass prism breaks up into light of different colours because

refractive index of glass for different colours of light is different
glass prism absorbs white light and emits lights of several colours in different directions
of total internal reflection of white light on surfaces of the prism
of the interference of different colours inside the prism

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