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Question : 32
Total: 36
Four students P , Q , R and S traced the path of a ray of light passing through a glass slab for an angle of incidence 40 ∘ and measured the angle of refraction. The values as measured them were 18 ∘ ; 22 ∘ ; 25 ∘ and 30 ∘ respectively. The student who has performed the experiment methodically is
Solution:
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