List of top Questions asked in CUET (PG)

What is the effect of temperature on magnetic susceptibility of ferromagnetic materials?

The energies involved in the process of domain growth are:
A. Exchange energy
B. Anisotropic energy
C. Domain Wall energy
D. Magnetostrictive energy
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Paramagnetic materials behaves as diamagnetic materials :

The effective density of states of electrons (\(N_c\)) at the conduction band edge of the intrinsic semiconductor varies with temperature, as:

Diamond exhibits which type of structures:

The reciprocal lattice for a body centered cubic crystal is:

Match the LIST-I with LIST-II

LIST-I (Parameters)	LIST-II (Expressions)
A. Potential energy of a system of two atoms	I. \( \alpha = \sum_{j} \pm \frac{1}{p_{ij}} \)
B. Madelung constant	II. \( U_{ij} = \pm \frac{q^2}{r} \)
C. Coulomb electrostatic energy	III. \( U = -\frac{A}{r^2} + \frac{B}{r^{10}} \)
D. Cohesive energy	IV. \( U_{ij} = \lambda e^{-r_{ij}/\rho} \pm \frac{q^2}{r_{ij}} \)

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According to the Entropy hypothesis, which one of the following statements is correct:

Antiferromagnetic materials have magnetic susceptibility in the range:

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LIST-I (Thermal Process)	LIST-II (Statement)
A. Isothermal process	I. Which occurs at constant volume
B. Adiabatic Process	II. Which occurs at constant pressure
C. Isobaric Process	III. Which occurs at constant temperature
D. Isochoric process	IV. No heat transfer during the thermodynamic process

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Which current does not contribute to a uniformly doped semiconductor:

Domain theory explains:

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LIST-I (Basic Laws)	LIST-II (Properties)
A. First Law of Thermodynamics	I. Concept of temperature
B. Second Law of Thermodynamics	II. Concept of internal energy
C. Third Law of Thermodynamics	III. Concept of entropy
D. Zeroth Law of Thermodynamics	IV. Nernst Theorem

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The number of distinct space groups possible in 3-dimensions is:

Inter-planer spacing for a (034) plane in a simple cubic, whose lattice constant is \(4.5 \times 10^{-10}\) m, is:

How does the gas constant R is related to the universal gas constant \(\bar{R}\) and molecular mass M?

Which of the following symmetry does not exist:

Match the LIST-I with LIST-II
\begin{tabular}{|l|l|} \hline LIST-I & LIST-II
\hline A. If heat is added to the system & I. \(Q<0\)
B. If heat is removed from the system & II. \(W>0\)
C. If work is done on the system & III. \(Q>0\)
D. If work is done by the system & IV. \(W<0\)
\hline \end{tabular}
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The steps involved in determining the Miller indices are:
A. Take the reciprocal of these intercepts.
B. Simplify the fraction.
C. Enclose the obtained numbers into parentheses.
D. Find the intercepts of the plane on the crystallographic axes.
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As the particle size reduces, the optical absorption spectra shifts towards:

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LIST-I (Quantum structures)	LIST-II (Delocalization dimensions)
A. Bulk conductor	I. 0
B. Quantum well	II. 3
C. Quantum wire	III. 1
D. Quantum dot	IV. 2

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Match the LIST-I with LIST-II

LIST-I	LIST-II
A. Field emission	I. detector of gases
B. Chemical sensor	II. strength of plastic composites
C. Mechanical Reinforcement	III. serve as heat sink
D. Computer	IV. flat panel display

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Carbon nanotube shows magneto-resistive effects:

The characteristic length of nano-materials is:

Surface area to volume ratio of materials: