9. Which of the following claims about crystal lattice diffraction patterns is correct? a) Diffraction patterns possess a center of symmetry b) Diffraction patterns doesn’t have center of symmetry c) Diffraction patterns are linear space d) Diffraction patterns contains α-rays
Answer: a Explanation: In reciprocal space, diffraction patterns have a symmetry center. This lofty claim implies that miller indices positive hkl and negative hkl reflections are comparable, provided that anomalous dispersion is not present.
