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A ray of light travelling in a transpara...

A ray of light travelling in a transparant medium falls on a surface separating the medium from air at an angle of incidence of `45degree`. The ray undergoes total internal reflection. If n is the refractive in index of the medium with respect to air, select the possible value (s) of n from the following:

A

1.3

B

1.4

C

1.5

D

1.6

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The correct Answer is:
C, D
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