MHT CET 2022 Physics question

For a light ray to undergo total internal reflection, light must travel from (i = angle of incidence, = critical angle)

(A)rarer to denser medium and i <
(B)denser to rarer medium and i <
(C)denser to rarer medium and i > Correct
(D)rarer to denser medium and i >

Answer: (C)

Solution

Total internal reflection requires two conditions: (1) the light must travel from a denser medium to a rarer medium, because only then does the refracted ray bend away from the normal and a critical angle exists (); (2) the

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Question ID VK-097061