(2) Al has a FCC structure. If the Brag’s angle for the (220) set of planes occurs at 32.5 degree (first order diffraction) when monochromatic x-radiation having a wavelength of 0.154 nm is used, compute
( ps.Useful Infromation: sin 32.5° ≅ 0.54 ; sin 65° ≅ 0.91 ; sin 16.25° ≅ 0.28; √6 ≅ 2.45; √8 ≅2.83)
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