Find the slit separation of a double-slit arrangement that will produce interference fringes 0.018 rad apart on a distant screen when the li

Question

Find the slit separation of a double-slit arrangement that will produce interference fringes 0.018 rad apart on a distant screen when the light has wavelength l 589 nm

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Hưng Khoa 4 years 2021-09-05T06:31:36+00:00 1 Answers 10 views 0

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  1. thienthi
    0
    2021-09-05T06:32:52+00:00
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    Answer:

    1.64 * 10^(-5) m

    Explanation:

    Parameters given:

    Angular separation, θ = 0.018 rad

    Wavelength, λ = 589 nm = 5.89 * 10^(-7) m

    The angular separation when there are 2 slots is given as

    θ = λ/2d

    where d = separation between slits

    d = λ/2θ

    d = (589 * 10^(-9))/(2 * 0.018)

    d = 1.64 * 10^(-5) m

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