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9 November, 15:59

Light in air enter crown glass (n = 1.52) at an angle of 35 degrees. What is the refracted angle?

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  1. 9 November, 17:01
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    22.17 degree

    Explanation:

    n = 1.52

    Angle of incidence, i = 35 degree

    Let the angle of refraction is r.

    use the Snell's law

    n = Sin i / Sin r

    Sin r = Sin i / n = Sin 35 / 1.52

    Sin r = 0.37735

    r = 22.17 degree

    Thus, the ray is refracted at an angle of 22.17 degree.
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