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Q.

If the polarizing angle of a piece of glass for green light is 54.740, then the angle of minimum deviation for an equilateral prism made of same glass is (Given: tan54.740=1.414 )

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a

450

b

54.740

c

600

d

300

answer is D.

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Detailed Solution

detailed_solution_thumbnail

μ=tanip=tan54.740=1.414=2

From μ=sin(A+δm)/2sinA/2=2

sin(600+δm2)=2sin6002=2×12=12

600+δm2=450

δm=900−600=300

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