Laue’s model pictures XRD as reflection from parallel crystalline planes. Reflection is different from refraction as:

Related MCQs

• The Miller indices h, k, and l of parallel planes in a BCC lattice should satisfy which of the following X-ray diffraction reflection rules?
• Metal glasses differ from their crystalline counterparts in many ways. Chief application(s) of metal glasses include(s):
• Bragg’s law is not a sufficient condition for diffraction by crystalline solids.
• Most crystalline materials have dislocations in their as formed state.
• 2 SINGLE CRYSTALS: UNIT CELL, CRYSTAL SYSTEMS, BRAVAIS LATTICES, DIRECTIONS AND PLANES IN A CRYSTAL, MILLER INDICES
• Miller indices for perpendicular planes are always the same.
• A ho*mo-junction is an interface between two adjoining single-crystal semiconductors with different band-gap energies.
• An iron rod is heated. The colors at different temperatures are noted. Which of the following colors shows that the iron rod is at the lowest temperature?