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Questions  

A ray of light entering from air in to a medium (μ=1.2) is partly reflected and partly refracted. If the incident and reflected rays are at right angles to each other, the angle of refraction is

a
sin−1(562)
b
tan−1(65)
c
tan−1(56)
d
sin−1(65)

detailed solution

Correct option is A

μ1×sini=μ2sinr sin(45)=1.2sinrsinr=121.2=562

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