The curve of angle of incidence versus angle of deviation shown has been plotted for prism. The value of refractive index of the equilateral prism used is
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a
3
b
2
c
32
d
23
answer is A.
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Detailed Solution
δ=i+e−A,dmin=600, when i=e∴ 600=2i−A=2600−A ∴ μ=sinA+δmin2sinA2=sin60+602sin602=3