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Question
The angular dispersion produced by a prism ___________ .
Options
increases if the average refractive index increases
increases if the average refractive index decreases
remains constant whether the average refractive index increases or decreases
has no relation with average refractive index
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Solution
increases if the average refractive index increases
If μ is the average refractive index and A is the angle of prism, then the angular dispersion produced by the prism is given by \[\delta = (\mu - 1)A\]
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