List of top Questions asked in CUET (PG)

In X-ray diffraction, a collimated beam of X-rays, with most appropriate wavelength ranging from .......... is incident on a specimen and is diffracted by the crystalline phases of the specimen:

........... are electromagnetic radiation with typical photon energies in the range of 100 eV to 100 keV:

Measurement of grain size by using X-ray diffraction line broadening can be done by:

Which of the following statements about hydrogen peroxide is INCORRECT?

Gauss's law in magnetostatics is expressed as,

If in a free space, the electric field is given as: \[ \vec{E} = 20 \cos(\omega t - 50x) \hat{y} \, \text{V/m} \] then, the expression of displacement current density \( J_d \) is:

The transmission efficiency of an ordinary AM signal with a modulation percentage of 80% is:

In amplitude modulation:
(A) The envelope detector operates properly, only if $(1/f_c) \leq RC \leq (1/f_m)$
(B) Vestigial sideband modulation is used in television broadcasting.
(C) Selective fading produces more distortion in SSB-SC systems than in DSB-SC.
(D) Efficiency of a suppressed carrier system is 100%, whereas in AM the maximum efficiency is only 33.3%.
Choose the correct answer from the options given below:

Quantum well lasers were first fabricated using the ............ material systems.

Which of the following is the most appropriate transmission frequency in optical fibre?

Fibre optic sensors may be classified into three categories. Choose the incorrect option.

In the first window of optical fibre, light sources are generally:

Choose the correct answer from the options given below.
A. \( \vec{\nabla} \times \vec{B} = \mu_0 \vec{J} \) represents Ampere's circuital law.
B. \( \vec{\nabla} \cdot \vec{B} = 0 \) represents magnetic monopole doesn't exist experimentally.
C. \( \vec{\nabla} \times \vec{E} = 0 \) represents the conservative nature of the electric field.
D. \( \vec{\nabla} \times \vec{A} = 0 \) represents the solenoidal condition for a vector field.

In GaAsP, if $E_g = 1.9 \, \text{eV}$, the emission wavelength is:

Which part of optical fibre has a higher refractive index:

Attenuation in optical fibre can be measured in:

The process of transferring a pattern into a reactive polymer film which will subsequently be used to replicate that pattern into an underlying thin film is called:

The process of synthesizing large polymer molecules is:

Match List-I with List-II

Choose the correct answer from the options below:

The process of transferring growth species from a source or target and depositing them on a substrate to form a film is called:

In nanomaterials production, according to Aufbau principle the self-assembly of complicated structures takes place in a hierarchical fashion in the following sequence:
(A) the linear chains are bundled to form two-dimensional monolayers
(B) single molecules join up to form linear chains
(C) a finite number of independent molecules
(D) the two-dimensional monolayers are stacked to form the final three-dimensional crystal
Choose the correct answer from the options given below:

........... nanoparticles are extraordinarily efficient for clinical diagnostic purposes as they give strong signatures in optical absorption, fluorescence spectroscopy, X-Ray diffraction, and electrical conductivity.

Arrange the following fabrication steps of MOSFET from initials:
(A) Metallization
(B) Oxidation
(C) Etching
(D) Diffusion/Ion implantation

The Extreme Ultraviolet (EUV) lithography employs .......... wavelength.