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Statement of a problem № 10989

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The drawing shows four different situations in which a light ray is traveling from one medium into another. In some of the cases, the refraction is not shown correctly. For cases (a), (b), and (c), the angle of incidence is 558; for case (d), the angle of incidence is 08. Determine the angle of refraction in each case. If the drawing shows the refraction incorrectly, explain why it is incorrect.




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