UPSC NDA I 2023 General Ability Solved Paper

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Question : 148 of 150

Marks: +1, -0

In the dispersion of white light by a common glass prism, which one among the following is correct?

Red light deviates the most because red light has highest speed in prism
Blue light deviates the most because blue light has highest speed in prism
Red light deviates the most because red light has lowest speed in prism
Blue light deviates the most because blue light has lowest speed in prism

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