X rays of wavelength 0.0850 nm are scattered from the atoms of a crystal. The second-order maximum in the Bragg reflection occurs when the angle θ in Fig is 21.5°. What is the spacing between adjacent atomic planes in the crystal? (b) Scattering from adjacent atoms in a rowInterference from adjacent atoms in a row isconstructive when the path lengths a cos 0and a cos 0, are equal, so that the angle ofincidence 0, equals the angle of reflection(scattering) 0..(c) Scattering from atoms in adjacent rowsInterference from atoms in adjacent rows isconstructive when the path difference2d sin0 is an integer number ofwavelengths, as in Eq. (36.16).(a) Scattering of waves from a rectangular arrayIncident plane wavesa cos e. acos0,Scatterers (e.g., atoms)d sined sine

Given data λ=0.085 nmθ=21.5°m=2

Answered: (b) Scattering from adjacent atoms in a…

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