A ray of light makes an angle of 50° with surface S1 of the glass slab . It's angle of incidence will be........
(a) 50°
(b) 40°
(c) 140°
(d) 0°
Answers
Answered by
3
(b) 40° is right answer
salunkhesagar297:
How!!
Answered by
2
YOUR answer is (b) 40
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