Question

25. A ray of light travelling inside a rectangular
glass block of refractive index √2 is incident
on the glass-air surface 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%​

Answer 1

Answer:

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