For students P, Q, R and S traced the path of a ray of light passing t – InterviewSolution

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1.	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
Answer» 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 $40^{\circ}$ and measured the angle of refraction. The values as measured them were $18^{\circ}; 22^{\circ}; 25^{\circ}$ and $30^{\circ}$ respectively. The student who has performed the experiment methodically is

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