The refractive index of denser medium 2 with respect to rarer medium 1 – McqOptions

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1.	The refractive index of denser medium 2 with respect to rarer medium 1 is equal to? (where 'C' is critical angle)
A.	cosec C
B.	sin C
C.	cos C
D.	tan C
Answer» C. cos C

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