Draw a ray diagram to show refraction of
a ray of monochromatic light passing
through a glass prism. Deduce the
expression for the refractive index of
glass in terms of angle of prism and
angle of minimum deviation.
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Answer:
The refracting angle of the prism is A. A ray of monochromatic light EF is incident on face PQ at angle of incidence i1. The refractive index of material of prism for this ray is n. This ray enters from rarer to denser medium and so is deviated towards the normal FN and gets refracted along the direction FG.
Explanation:
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