10 question is a doubt
Q10. A ray R1 is incident on the plane surface of the glass slab (kept in air) of refractive index 2 at an angle of incidence equal to the critical angle , for this air glass system. The refracted ray R2 undergoes partial refection and refraction at the other surface. The angle between reflected ray R3 and the refracted ray R4 at that surface is :
(A) 45° (B) 135°
(C) 105° (D) 75°
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Answer:
option b is the right answer
Answered by
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Answer:(C)
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