For 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 (A) P (B) Q (C) R (D) S
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The answer is (B) Q.
Because angle of refraction is taken as approximately half of angle of incidence.
Because angle of refraction is taken as approximately half of angle of incidence.
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