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Question Number : 27
Qu
Monochromatic light falls at an angle of incidence *i' on a slab of a transparent material, refractive index of this material being 'u' for the given light.
What should the relation between i and u be so that the reflected and the refracted rays are mutually perpendicular?
(1)
i = tan-1
(2) i= sin-(u)
(3) i= cos'(H)
(4) i = cot-? (u)
2
1
4
3
Answers
Answered by
3
Answer:
option4 is correct
Explanation:
we must apply the Snell's laws to there relationship between refracted and incident ray
Answered by
0
Answer:
option four definitely it is correct
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