List of top Physics Questions asked in CUET (PG)

What is the kinetic energy of an electron in the lowest energy level of a hydrogen atom?

The SI system has seven basic units and these units pertain to the seven fundamental scientific quantities which one is not in the list of seven SI units-

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?

The Lissajous figure of two rectangular SHMs of equal frequency and phase difference of π/2 is

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

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.

Given below are two Statement:
Statement I: Speed is a vector quantity
Statement II: Velocity is a scalar quantity
In the light of the above statements, choose the correct answer from the options given below:

If the stream function equation y=3x²-y², what is the magnitude of velocity at point (2.2)?

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

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)

If W is weight of the chain, L is span and P is tension or pull, then sag correction for chain line will be.

When bullet is fired from a gun, its potential energy is converted into ____ .

C₁ and C₂ represent the specific heat of a liquid and its saturated vapour where- as L is latent heat of vaporization. (T is the temperature) The correct option is

Given below are two statements:
Statement I: Accuracy is the degree of agreement between the measured value and the accepted true value of the given parameter.
Statement II: Determinate error are random in nature and occur when something went wrong during the measurement.
In the light of the above Statements, choose the correct answer from the options given below:

Human ear normally hears sounds originating from the vibrating objects with a frequency between

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.

Soap bubble attains spherical shape due to

A scale of 1 inch = 50 ft is mentioned on an old map. What is the corresponding equivalent scale?

The Lissajous figure may be a straight line if the phase difference is

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.

The arithmetical check for Height of Instrument method (HI) is -

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.

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

The moment of the couple formed by the forces \(5\hat{i}+\hat{k}\) and \(-5\hat{i}-\hat{k}\) acting at the points (9, -1, 2) and (3, -2, 1) respectively, is