Question-2. BCC Tantalum has an atomic radius of 0.1430 nm. Answer the following questions: (a) Calculate the lattice parameter a, b, c of the BCC structure. (b) Determine the interplanar spacings of...

Extracted text: Question-2. BCC Tantalum has an atomic radius of 0.1430 nm. Answer the following questions: (a) Calculate the lattice parameter a, b, c of the BCC structure. (b) Determine the interplanar spacings of (110), (200), (211), and (220) planes (c) Determine the expected angles for the first-order reflection of (110), (200), (211), and (220) planes when monochromatic x-ray radiation of a wavelength 0.1542 nm is used.