A ray of light travelling inside a rectangular glass block `(mu=sqrt2)` is incident on the glass-air surface at an angle of incidence of `45^@`. The r

A ray of light travelling inside a rectangular glass block `(mu=sqrt2)` is incident on the glass-air surface at an angle of incidence of `45^@`. The refractive index of air is 1. The ray will
A. will be absorbed by the glass slab
B. will travel in air without any deviation
C. will travel parallel to the interface i.e., the angle of refraction will be ` 90^(@)`
D. will be reflected back in glass

Monjur Alahi

5 views

2025-01-04 04:42

1 Answers

Salim Ahmed Kawsar

Correct Answer - C
It is incident at the critical angle `n=(1)/(sin C)=sqrt(2)`.

5 views Answered 2023-02-05 15:29

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