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A ray of light travelling inside a recta...

A ray of light travelling inside a rectangular galss block of refractive index `sqrt2` is incident glass-air suface at an angle of incidence of `45^@`. The refractive index of air is one. Under these conditions, the ray

A

will emerge into the air without any deviation.

B

will be reflected back into the glass.

C

will be absorbed.

D

will emerge into the air with an angle of refraction equal to `90^@`.

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