List of top Questions asked in CUET (PG)

Given below are two statements:
Statement-I : Law of conservation of momentum is invariant to Galilean transformation.
Statement-II Law of conservation of energy is invariant to Galilean transformation.
In the light of the above statements, choose the correct answer from the options given below.
What is the kinetic energy of an electron in the lowest energy level of a hydrogen atom?
A white dwarf star has volume V and contains N electrons so that the density of electron is \(n=\frac{N}{V}\). Taking the temperature of the star to be 0 K, what will be the expression for average energy per electron in the star?
A metal has work function \(w_0\) = 3.3×10-19 J. What should be the minimum frequency of the incident radiation that can remove an electron from the metal surface? [Given h = 6.6x10-34 J-s]
Consider an inertial frame S' moving at a speed \(\frac{c}{3}\) away from another inertial frame S along the common x-axis, where c is the speed of light. As observed from S', a particle is moving with speed \(\frac{c}{3}\) in the y' direction as shown in the figure. The speed of the particle as seen from S will be
inertial frame
Find the output voltage of a non-inverting OP-AMP having \(R_1\) = 100 kΩ, \(R_f\) = 500 kΩ, when the input signal is of 2.0 V.
If the stream function equation y=3x2-y2, what is the magnitude of velocity at point (2.2)?
A scale of 1 inch = 50 ft is mentioned on an old map. What is the corresponding equivalent scale?
A car accelerate from it's Stationary position for 8 seconds and travels a distance of 280m. According to the mean value theorem, the speedometer at a certain time during accelaration must read exactly.
In Force current analogy, stiffness constant K is analogous to__
A moving coil ammeter having resistance of 10 ohm gives full scale. detection when current of 5 mA passed through it. The resistance to be connected to make the instrument to read up to 1 A is__
Match List I with List II
LIST I (Characteristic Equation)LIST II (Nature of Output)
A\(S^2+18S+64\)IUnderdamped
B\(S^2+25\)IICritically damped
C\(S^2+12S+36\)IIIUndamped
D\(S^2+8S+25\)IVOverdamped
Choose the correct answer from the options given below:
The transfer function for the diagram shown below is given by____
The transfer function
Match List I with List II
LIST ILIST II
ADamper WindingITo improvement the power factor
BLaminated steelIITo reduce the starch current
CAuto transformer startersIIIPrevent hunting
Dsynchronous condenserIvReduce eddy current loss

Choose the correct answer from the options given below:

Find \(R_{ equivalent}\) of the given circuit.
Circuit
In a fixed-bias common-emitter Circuit.
A. Maintaining \(I_B\) constant will not provide operating-point stability as ẞ changes.
B. IB should not be allowed to change as to maintain \(V_{CB}\) and \(I_C\), constant as ẞ changes.
C. The reverse saturation current Ico doubles for every 10 °C rise in temperature.
D. The value of stability factor \(S=(1+\beta)\)
E. The circuit is highly unstable
Match List I with List II
LIST I (Type of Device)LIST II (Characteristics/ Application)
AGTOITriggering Circuit
BUJTIITurn off by negative pulse rate
CTRIACIIIHigh Speed Switching
DMOSFETIVBidirectional Switching
Choose the correct answer from the options given below:
In single pulse modulation of PWM inverter, third harmonic can be eliminated if pulse width is equal to
Match List I with List II
LIST ILIST II
AVoltage StabilityIPower system stabilizer
BTransient stabilityIIDamping Power
COscillatory instabilityIIIAngle stability
DStudy-state dynamicsIVReactive power
Choose the correct answer from the options given below:
A. Pyranometer measures global solar radiation received from entire hemisphere on a horizontal surface.
B. Solarimeter can be interpreted to mean same as pyrheliometeric instrument.
C. Pyranometer produces a voltage as a function of the incident solar radiation.
D. Pyranometer uses photovoltaic detectors.
E. Pyranometre's spectral response is linear.
Choose the correct answer from the options given below:
Given below are two statements:
Statement I: Kinetic energy of the wind is proportional to (velocity).
Statement II: Kinetic energy of the wind is proportional to area of sweep of wind turbine and also on Air density.
In the light of the above statements, choose the most appropriate answer from the options given below:
In terms of total primary energy consumption. At present India stands at what position?
If a, b, c, d are in Harmonic progression then
(A) a+d>b+c
(B) a+c=b+d
(C) ad > bc
(D) an +cn>26n
(E) a+d<b+c
Choose the correct answer from the options given below :
A 100 uF capacitor (C1) is initially charged to accumulate 150 μC. One unchanged capacitor (C2) 350 μF is parallelly connected to first one. In steady state, C1 will have
The two lines AB and CD shown in h-s curve are, respectively: