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A ray of light travelling in a transpare...

A ray of light travelling in a transparent medium falls on a surface separating the medium from air at an angle of incidence `45^(@)`. The ray undergoes total internal reflection. If n is the refractive 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

1.2

D

1.6

Text Solution

Verified by Experts

The correct Answer is:
D
IgtC But `mu =1/(sin C)`
sinigt sin C
`sin45^(@) gt sin C`
`1/(sin 45^(@)) lt 1/(sinC)`
`sqrt(2) lt mu`
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