Q3 The below table lists diffraction angles for the first three peaks (third ~order) of the X-ray diffraction pattern for some metal. Monochromatic X-radiation having a wavelength of (0.1397 nm) was used for FCC crystal ? 10 mark)
(a Determine the lattice constant (b) radius of atoms
Peak Number
miller indies 220 200 0H[
Diffraction Angle (20) 52 46 42