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What is the index of refraction

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Light enters the curved surface of a semicircular block filled with an unknown liquid. This block is surrounded by air. The incident angle is 25.0o. A screen is 3.20 cm away, and the refracted light strikes the screen 2.80 cm above the normal. What is the index of refraction? At what angle would the light ray be totally internally reflected? You may find a drawing of the situation helpful.

Reference no: EM132567212

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