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5 August, 13:49

A coating of film n=1.33 on glass slabs (n=1.6) is 8.3 * 10E - 5 cm thick. If white light is incident normally, which visible wavelengths are missing in the reflected light?

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  1. 5 August, 14:49
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    We are given with

    n1 = 1.33

    n2 = 1.6

    x = 8.3x10-5 cm

    The angle of incident is normal, angle is 90

    Using Snell's law

    sin θ1 / sin θ2 = n2 / n1

    Substitute the given values and solve for θ2
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