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CUET (PG)
List of top Questions asked in CUET (PG)
If n observations are taken, then accidental errors are proportional to.
CUET (PG) - 2023
CUET (PG)
Physics
Accuracy, precision of instruments and errors in measurement
Theory of errors and adjustments deals with minimizing the effects of.
CUET (PG) - 2023
CUET (PG)
Physics
Accuracy, precision of instruments and errors in measurement
The side of a square land was measured as 150m and is in error by 0.05m. What is the corresponding error in the computed area of the land?
CUET (PG) - 2023
CUET (PG)
Physics
Accuracy, precision of instruments and errors in measurement
The radius of Mohr's circle of stress of a stressed element is 30 N/mm
2
and minor principal tensile stress is 15 N/mm
2
. The major principal stress is:
CUET (PG) - 2023
CUET (PG)
Physics
Stress and strain
Match List I with List II
LIST I (Characteristic Equation)
LIST II (Nature of Output)
A
\(S^2+18S+64\)
I
Underdamped
B
\(S^2+25\)
II
Critically damped
C
\(S^2+12S+36\)
III
Undamped
D
\(S^2+8S+25\)
IV
Overdamped
Choose the correct answer from the options given below:
CUET (PG) - 2023
CUET (PG)
Physics
Damped Simple Harmonic Motion
Match List I with List II
LIST I
LIST II
A
Damper Winding
I
To improvement the power factor
B
Laminated steel
II
To reduce the starch current
C
Auto transformer starters
III
Prevent hunting
D
synchronous condenser
Iv
Reduce eddy current loss
Choose the correct answer from the options given below:
CUET (PG) - 2023
CUET (PG)
Physics
Damped Simple Harmonic Motion
In single pulse modulation of PWM inverter, third harmonic can be eliminated if pulse width is equal to
CUET (PG) - 2023
CUET (PG)
Physics
Damped Simple Harmonic Motion
If two simple harmonic motions having angular frequency 440 rad/s and 396 rad/s are superimposed, what will be the number of beats produced?
CUET (PG) - 2023
CUET (PG)
Physics
Simple Harmonic Motion
The Lissajous figure of two rectangular SHMs of equal frequency and phase difference of π/2 is
CUET (PG) - 2023
CUET (PG)
Physics
Simple Harmonic Motion
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]
CUET (PG) - 2023
CUET (PG)
Physics
Work
Five Carnot engines operate between reservoir temperatures of
A. 100 K and 500 K
B. 200 K and 500 K
C. 400 K and 500 K
D. 200 K and 800 K
E. 200 K and 400 K
Arrange the engines according to their decreasing efficiencies.
Choose the correct answer from the options given below.
CUET (PG) - 2023
CUET (PG)
Physics
Carnot engine
If
\(\hat{n_1}, \hat{n_2}\)
are two unit vectors and
\(\theta\)
is the angle between them, then
\(\cos\frac{\theta}{2}\)
is equal to
CUET (PG) - 2023
CUET (PG)
Physics
Unit Vectors
The unit vectors orthogonal to the vector
\(-\hat{i}+2\hat{j}+2\hat{k}\)
and making equal angles with the x and y axis is (are)
CUET (PG) - 2023
CUET (PG)
Physics
Unit Vectors
When bullet is fired from a gun, its potential energy is converted into ____ .
CUET (PG) - 2023
CUET (PG)
Physics
Potential Energy
What is the change in entropy when 10 g of ice at 0 °C is converted into water at the same temperature? The latent heat of ice is 80 cal/g.
CUET (PG) - 2023
CUET (PG)
Physics
Entropy
Soap bubble attains spherical shape due to
CUET (PG) - 2023
CUET (PG)
Physics
Surface tension
The Lissajous figure may be a straight line if the phase difference is
CUET (PG) - 2023
CUET (PG)
Physics
Phase rule
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.
CUET (PG) - 2023
CUET (PG)
Physics
Law of conservation of momentum
If the wind speed at a site is 6 m/s for half of the year and 10 m/s for the rest of the year calculate the energy content in a year.
CUET (PG) - 2023
CUET (PG)
Physics
Electrical Energy, Power
Given
\(\overrightarrow A\)
x
\(\overrightarrow B\)
=
\(\overrightarrow C\)
,
Where
\(\overrightarrow A = x\hat i+y\hat j+3\hat k\)
,
\(\overrightarrow B = y\hat î + x\hat j + 2\hat k\)
,
\(\overrightarrow C=-5\hat î+5\hat k\)
Find the value of x and y
CUET (PG) - 2023
CUET (PG)
Physics
Scalars and vectors
What will be the separation between the coherent sources formed by a bi-prism whose inclined faces makes an angle of 2° with its base, the slit source being 0.10 m away from the bi-prism (Given μ = 1.5)?
CUET (PG) - 2023
CUET (PG)
Physics
Refraction Of Light Through A Prism
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?
CUET (PG) - 2023
CUET (PG)
Physics
Energy
In terms of total primary energy consumption. At present India stands at what position?
CUET (PG) - 2023
CUET (PG)
Physics
Energy
Given below are two statements:
Statement - I: The formula of correct length is
\(\frac{\text{Measure of length}}{\text{Nominal length of Tape}}\)
× Actual length of tape.
Statement - II: The formula of sag correction is -
\(\frac{-W^2}{24P^2}\times L\)
.
In the light of the above statements, choose the correct answer from the options given below :
CUET (PG) - 2023
CUET (PG)
Physics
Correct Measurement Of Length
The true length of a line is known to be 200m. When this is measured with a 20m tape, the length is 200.80m. The correct length of the 20m tape is.
CUET (PG) - 2023
CUET (PG)
Physics
Correct Measurement Of Length
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