Recent questions in Classification of Materials

Consider $3$ crystals (all having FCC lattice) labelled as $\text{P, Q}$ and $\text{R}$ as described below:Crystal $\text{P}$: Cu crystal with $4$ $\text{Cu}$ atoms per u...

​​​​The figure below shows a plane $\text{PQR}$ in a unit cell. The Miller indices of the plane $\text{PQR}$ is$(432)$$(43 \overline{2})$$(23 \overline{4})$$(\overline{2}...

​​​​​There is $\textsf{NO}$ base-centered cubic lattice among the list of $14$ Bravais lattices because of one or more of the following reasonsIt does $\textsf{NOT}$ have...

Which one of the following unit cell parameters represents a tetragonal crystal system?$\mathrm{a}=\mathrm{b}=\mathrm{c} ; \quad \alpha=\beta=\gamma \neq 90^{\circ}$$\mat...

\begin{tabular}{|l|l|}\hline Q. 53 & \begin{tabular}{l}A student performed X-ray diffraction experiment on a FCC polycrystalline pure \\metal. The following $\sin ^{2} \t...

\begin{tabular}{|c|c|c|}\hline \multirow[t]{6}{*}{ Q. 55} & \multicolumn{2}{|c|}{ Match the hardness test (in Column I) with its indenter type (in Column II). } \\\hline ...

\begin{tabular}{|l|l|}\hline Q. 58 & \begin{tabular}{l}Among the 14 Bravais lattices, there is no base centred cubic unit cell. Which of \\the following statement(s) is/a...

\begin{tabular}{|l|l|}\hline Q.44 & Number of atoms per unit area of the (110) plane of a body centered cubic crystal, \\with lattice parameter ' $a$ ', is \\\hline& $\fr...

A two-phase $(\alpha+\beta)$ mixture of an $\text{A-B}$ binary system has the following properties:Phase $\alpha$ has equal weight percentages of $\mathrm{A}$ and $\mathr...

A spherical $\beta$ particle nucleates from the $\alpha$ matrix on a non-deformable substrate \end{tabular} $\delta$, forming a contact angle of $\theta$ as shown in the ...