Recent questions tagged gatexe-2022

An electrochemical reaction is known to occur at $+4.50 \mathrm{~V}$ against a $\mathrm{Li}^{+} / \mathrm{Li}$ reference electrode. The potential of the same reaction aga...

The enthalpy required to create an oxygen vacancy in $\mathrm{CeO}_2$ is $4 \mathrm{eV}$. The number of oxygen vacancies present per mole of $\mathrm{CeO}_2$ at $1000 \ma...

For a binary system at constant pressure, there are two types of invariant reactions:(i) $\quad \alpha \leftrightarrow \beta+\gamma$(ii) $\quad \alpha+\beta \leftrightarr...

Which one of the following samples of high-purity aluminium (Al) single crystal will plastically yield at the lowest applied load under ambient conditions? Loading axis i...

For a glass marginally below its glass transition temperature, which one of the following statements is true?Glass has higher enthalpy than both the corresponding crystal...

Refer to the schematic shown. Two dog-bone samples, labelled 1 and 2 , of a Cualloy are tested under tension at room temperature to points "E" and "P", respectively. Subs...

During the ageing of a homogenized Al-Cu alloy $(1 \text{to} 4$ $\mathrm{wt} \% \mathrm{Cu})$ below the GP zone solvus, hardness of the alloy:increases monotonicallydecre...

A student aims to deposit a thin metallic film on $\mathrm{SiO}_{2}$ substrate, with an adhesion layer between the metal film and substrate, in a contiguous planar fashio...

For a diffusional transformation $\text{(i.e., growth of $\beta$ precipitates in an $\alpha$ matrix)}$, which of the following is/are true with increasing degree of under...

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...

It is known that component A diffuses into a solid to a depth of $10 \mu \mathrm{m}$ in 1 hour at $300 \mathrm{~K}$. Treat diffusion in one dimension. The time taken for ...

The resistivity of a pure semiconductor at $298 \mathrm{~K}$ is $3000 \Omega \mathrm{m}$. Assume that the number of electrons excited $\left(n_{e}\right)$ across the band...

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 ...

The third peak in the X-ray diffraction pattern of a face-centered cubic crystal is at $2 \theta$ value of $45^{\circ}$, where $2 \theta$ is the angle between the inciden...

A new glass material is developed to minimize the transmission of the light through the window with glass panel of thickness $5 \mathrm{~mm}$. The refractive index of the...

The movie was funny and I __________.could help laughing couldn't help laughedcouldn't help laughingcould help laughed

Both the numerator and the denominator of $\frac{3}{4}$ are increased by a positive integer, $x$, and those of $\frac{15}{17}$ are decreased by the same integer. This ope...

$x: y: z=\frac{1}{2}: \frac{1}{3}: \frac{1}{4}$.What is the value of $\frac{x+z-y}{y}$ ?$0.75$$1.25$$2.25$$3.25$

A survey of $450$ students about their subjects of interest resulted in the following outcome.- $150$ students are interested in Mathematics.- $200$ students are interest...

For the picture shown above, which one of the following is the correct picture representing reflection with respect to the mirror shown as the dotted line?