Solid State Physics I - SS3 Physics Past Questions and Answers - page 2
What is a Miller index?
A system for identifying crystal planes.
A type of crystal defect.
A measure of crystal purity.
A type of crystallographic axis.
Which of the following crystal structures is NOT a close-packed structure?
Hexagonal close-packed
Face-centred cubic
Body-centred cubic
Simple cubic
What are Crystal structures and symmetry?
Crystal structures and symmetry refer to the arrangement of atoms or molecules in a crystal. A crystal is a solid material whose atoms or molecules are arranged in a highly ordered, repeating pattern called a lattice.
What is the significance of Crystal structures and symmetry?
Crystal structures and symmetry are important in solid-state physics because they determine the electronic, magnetic, and optical properties of materials. For example, the band structure of a crystal, which determines its electrical conductivity, is determined by the arrangement of atoms in the lattice. The symmetry of a crystal also affects its optical properties, such as its ability to polarize light.