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March 29, 2017

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Prove, geometrically, that a ray of light entering a plate of glass always emerges in a direction parallel to the incident ray.

  • Physics - ,

    Figure the entry refraced ray angle, then do it again for the ray leaving. The start angle should be the same as the leaving angle.

  • Physics - ,

    I'm not given an angle though. Do I just make one up?

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