UPSC NDA 2 2021 General Ability Solved Paper

Question : 127 of 150

Marks: +1, -0

When a light beam falls on a triangular glass prism, a band of colours is obtained. Which one of the following statements is correct in this regard?

Red light bends the most, as the refractive index of glass for red light is greatest.
Red light bends the most, as the refractive index of glass for red light is lowest.
Violet light bends the most, as the refractive index of glass for violet light is greatest.
Violet light bends the most, as the refractive index of glass for violet light is lowest.

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