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For BCC iron, compute the (a) inter-planar spacing and the diffraction angle for the (220) set...

For BCC iron, compute the (a) inter-planar spacing and the diffraction angle for the (220) set of planes. The lattice parameter for Fe is 0.2866. Assume that monochromatic radiation having a wavelength of 0.1790 nm is used and the order of reflection is 1.

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