light of a wavelength 600 nm shines on a soap bubble film. For what soap film thickness will destructive interference occur

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light of a wavelength 600 nm shines on a soap bubble film. For what soap film thickness will destructive interference occur

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Hồng Cúc 3 years 2021-07-31T05:30:58+00:00 1 Answers 15 views 0

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  1. danthu
    0
    2021-07-31T05:32:53+00:00
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    Answer:

    The minimum thickness of the soap bubble for destructive interference to occur is 225.56 nm.

    Explanation:

    Given;

    wavelength of light, λ = 600 nm

    The minimum thickness of the soap bubble for destructive interference to occur is given by;

    t = \frac{\lambda/n}{2}\\\\t = \frac{\lambda}{2n}

    where;

    n is refractive index of soap film = 1.33

    t = \frac{\lambda}{2n} \\\\t = \frac{600*10^{-9}}{2(1.33)}\\\\t = 2.2556 *10^{-7} \ m\\\\t = 225.56 *10^{-9} \ m\\\\t = 225.56 \ nm

    Therefore, the minimum thickness of the soap bubble for destructive interference to occur is 225.56 nm.

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