An X-ray beam of wavelength 0.71A^0 is diffracted by a FCC crystal of density 1.99 x 10^3kg/m^3. Calculate the interplaner spacing for (200) planes and the glancing angle for second order reflection from these planes. Given molecular weight of crystal is 74.6 and Avogadro number is 6.023 x10^26/kg-mole.

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An X-ray beam of wavelength 0.71A^0 is diffracted by a FCC crystal of density 1.99 x 10^3kg/m^3. Calculate the interplaner spacing for (200) planes and the glancing angle for second order reflection from these planes. Given molecular weight of crystal is 74.6 and Avogadro number is 6.023 x10^26/kg-mole.

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