4. A diffraction pattern of a cubic crystal of lattice parameter (a 3.16 Å) is obtained with a monochromatic X-ray beam of wavelength 1.54 Å. The first line on this pattern was observed to have (O = 20.3°). Obtain the interplanar spacing and Miller indices of the reflecting plane? %3D
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![4. A diffraction pattern of a cubic crystal of lattice parameter (a
3.16 Å) is obtained with a monochromatic X-ray beam of
wavelength 1.54 Å. The first line on this pattern was observed to
have (O = 20.3°). Obtain the interplanar spacing and Miller indices
of the reflecting plane?
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