Recent questions tagged gatexe-2023

Q. 51 A metal has a certain vacancy fraction at a temperature of $600 \mathrm{~K}$. On increasing the temperature to $900 \mathrm{~K}$, the vacancy fraction increases by ...

Q. 52 In a semiconductor, the ratio of electronic mobility to hole mobility is 10 . The density of electrons and holes are $10^{15} \mathrm{~m}^{-3}$ and $10^{16} \mathrm...

\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}{|c|c|c|}\hline Q. 56 & \multicolumn{2}{|c|}{\begin{tabular}{l}TTT diagram of a eutectoid steel is shown below. Match the heat treatment cycle (ir \\Column...

\begin{tabular}{l|l}Q. 57 & Which of the following statement(s) is/are true for an optical microscope? \\\hline& Increasing the aperture of the objective lens deteriorate...

\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}Q.59 & Specific heat $\left(C_{v}\right)$ of a material was found to depend on temperature as shown \\below. Which of the following statement(s) is/ar...

\begin{tabular}{|l|l}\hline Q. 60 & \begin{tabular}{l}A pure Silicon wafer is doped with Boron by exposing it to $\mathrm{B}_{2} \mathrm{O}_{3}$ vapour at an \\elevated t...

\begin{tabular}{l|l}Q. 61 & \begin{tabular}{l}The Young's modulus of a quartz piezoelectric crystal is $100 \mathrm{GPa}$. The uniaxial \\stress required to change its po...

Q. 62 A one-dimensional nanowire has a linear electron density of $10^{8}$ electrons $\mathrm{cm}^{-1}$. The Fermi energy of the system is (in $\mathrm{eV}$ ) (rounded of...

Q. 63 Two moles of a monoatomic ideal gas at 10 atm and $300 \mathrm{~K}$ is expanded isothermally and reversibly to a pressure of $2 \mathrm{~atm}$. The absolute value o...

Q. 64An electrochemical cell consists of pure $\mathrm{Zn}$ electrode (anode) and a hydrogen electrode (cathode) in a dilute $\mathrm{Zn}^{+2}$ solution. The overall reac...

\begin{tabular}{l|l|}\hline Q. 65 & \begin{tabular}{l}In a Raman spectroscopy experiment done at $300 \mathrm{~K}$, a Raman line is observed at \\$200 \mathrm{~cm}^{-1}(\...

\begin{tabular}{l}Q. 66 \\A plane truss is simply supported at $P$ and $R$ as shown. A downward force $F$ is \\applied at hinge $Q$. The axial force developed in member $...

\begin{tabular}{l}Q.67 A massless rigid rod $O P$ of length $L$ is hinged frictionlessly at $O$. A concentrated \\mass $m$ is attached to end $P$ of the rod. Initially, t...

\begin{tabular}{|c|c|}\hline Q. 68 & \begin{tabular}{l}Two equivalent descriptions of the state of stress at a point are shown in the \\figure. The normal stresses $\sigm...

\begin{tabular}{l|l}Q.69 & The state of strain at a point in a machine component is given as \\$\varepsilon_{x x}=2.5 \times 10^{-4}, \varepsilon_{y y}=2.0 \times 10^{-4}...

\begin{tabular}{|l|l|}\hline Q.70 & A thin walled, closed cylindrical vessel of inside diameter $d$ and wall thickness $t$ \\contains a fluid under pressure $p$. The figu...