Optics Question 979

Question: If critical angle for a material to air is 30o, the refractive index of the material will be

[MP PET 2001]

Options:

A) 1.0

B) 1.5

C) 2.0

D) 2.5

Show Answer

Answer:

Correct Answer: C

Solution:

$ \mu =\frac{1}{\sin C}=\frac{1}{\sin 30}=2 $



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