List of top Physics Questions asked in CUET (PG)

For a system of particles, if the external net force acting on the system is zero, the system's center of mass is:
The gravitational field at a point in space is:
A siren on a tall pole radiates sound waves uniformly in all directions. At a distance of 15 m from the siren, the sound intensity is 0.250 W/m\(^2\). The intensity of sound at distance 75 m from siren is:
True conditions for sustained interference of light waves are:
A. Two interfering sources must be coherent.
B. Two interfering waves must be propagated along the same line.
C. Two interfering waves must have equal amplitude.
D. If the interfering waves are polarized, they must be in the same state of polarization.
Choose the correct answer from the options given below:
Inside a uniformly charged spherical shell, the value of the electric field at distance r from the center is:
A point charge +Q is placed at the origin. The electric potential at point (3a,4a,0) in terms of k, Q and a is:
A conducting sphere of radius R carries a total charge Q. The electric field at a distance r>R from the center is:
A long, straight wire carries a current of 10 A. The magnitude of the magnetic field at a distance of 5 cm from the wire is:
A 20g of cane sugar is dissolved in water to make 50 cc of solution. A 20 cm length of tube filled with this solution causes +53\(^{\circ}\)30' optical rotation. What will be the specific rotation?
Two thin convex lenses of focal lengths 2 cm and 6 cm are separated by a distance of 4 cm in air. Arrange the following cardinal points in ascending order on basis of their distance from second lens:
A. First Principal Point
B. First Focal Point
C. Second Focal Point
D. Second Nodal Point
When light ray refracts on entering from one medium to another medium of different refractive indices, it follows:
Which of the following conditions will lead to Anomalous dispersion?
The resolving power of a grating:
A. increases with increase in total number of lines ruled on grating.
B. increases with increase in total width of grating.
C. increases with increasing the order of spectrum as in Echelon grating.
D. increases with decreasing the order of spectrum as in Echelon grating.
Choose the CORRECT answer from the options given below:
A tuning fork of unknown frequency sounded with a tuning fork of frequency 256 Hz produces 4 beats per second. If a small quantity of wax is fixed on first fork so that it produces 3 beats per second with tuning fork, what will be the frequency of first fork (in Hz)?
As water flows from a faucet, stream of water becomes narrower as it descends. The guiding principle for this observation is:
A skater is using very low-friction rollerblades. A friend throws a Frisbee straight at her. In which case does the Frisbee impart the greatest impulse to the skater:
The engine of a rocket in outer space, far from any planet is turned on. The rocket ejects burnt fuel at constant rate. In the first second of firing, it ejects 1/100 of its initial mass at relative speed of 2000 m/s. The initial acceleration of the rocket is:
Displacement of a particle at any instant of time t is y = 5 sin(100\(\pi\)t + \(\phi\)). The frequency of oscillation of the particle is:
When in a small pond a person in rowboat, throws an anchor overboard, what happens to the water level?
If the torque remains constant while the angle changes, the work done is equal to:
If \(\vec{A} = \vec{\nabla} \times \vec{F}\), then \(\oiint_S \vec{A} \cdot \hat{n} dS\) (for any closed surface S) is:
If \(|\vec{A}+\vec{B}| = |\vec{A}-\vec{B}|\) then the angle between vectors \(\vec{A}\) and \(\vec{B}\) is:
For a force F to be conservative, the relations to be satisfied are:
A. \(\frac{\partial F_y}{\partial x} - \frac{\partial F_x}{\partial y} = 0\)
B. \(\frac{\partial F_z}{\partial y} - \frac{\partial F_y}{\partial z} = 0\)
C. \(\frac{\partial F_x}{\partial z} - \frac{\partial F_z}{\partial x} = 0\)
D. \(\frac{\partial F_y}{\partial x} - \frac{\partial F_x}{\partial y} = \frac{\partial F_z}{\partial y} - \frac{\partial F_y}{\partial z} = \frac{\partial F_x}{\partial z} - \frac{\partial F_z}{\partial x} \neq 0\)
Choose the correct answer from the options given below:
Moment of inertia of a solid cone about its vertical axis is:
A 1500 kg car traveling east with a speed of 25 m/s collides at an intersection with a 2500 kg van traveling north at a speed of 20 m/s. The direction of wreckage after collision, assuming that the vehicles undergo a perfectly inelastic collision is: