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A student traces the path of a ray of light through a rectangular glass slab for the different values of angle of incidence. He observes all possible

precautions at each step of the experiment. At the end of the experiment, on analysing the measurements, which of the following conclusions is he likely to draw? (A) ∠i = ∠e < ∠r (B) ∠i < ∠e < ∠r (C) ∠i > ∠e > ∠r (D) ∠i = ∠e > ∠r


D)angle of incidence= angle of emergent  greater then angle of refraction......
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