Plot the reciprocal lattice for a polycrystalline sample o fa material with a simple tetragonal structure and lattice parameters a = 4.0 A and c = 5.0 A. (Use a two dimensional section through the three dimensional space). Diffractometers typically can scan up to, but not beyond 165 degrees 2theta. What are the indices (hkl) of the highest angle reflection if (a) AgKalpha radiation is used, (b) CuKalpha radiation is used and (c) CrKalpha radiation is used?