Q

White light disperses through a prism. Which statements are correct? (1) Red has the minimum refractive index. (2) Violet deviates least. (3) All components have the same speed in glass.

RRB Group-D 24/08/2022 / Shift-II 2022
✓ Answer: D Only (1)
In ordinary glass, red has the lowest visible-light refractive index. Violet deviates most, and different colours have different speeds.
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