An x-ray beam with wavelength 0.240 nmnm is directed at a crystal. As the angle of incidence increases, you observe the first strong interfe

Question

An x-ray beam with wavelength 0.240 nmnm is directed at a crystal. As the angle of incidence increases, you observe the first strong interference maximum at an angle 66.0 ∘∘. What is the spacing ddd between the planes of the crystal?

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RI SƠ 4 years 2021-07-25T19:49:44+00:00 1 Answers 11 views 0

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  1. diemthu
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    2021-07-25T19:51:20+00:00
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    Answer:

    The spacing between the planes of the crystal is 0.295 nm

    Explanation:

    Given:

    λ = wavelength = 0.24 nm

    θ = angle of incidence = 66°

    The spacing d between the planes of the crystal is equal:

    d=\frac{n\lambda }{2cos\theta } =\frac{1*0.24}{2*cos66} =0.295nm

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