List of top Questions asked in CUET (UG)

The change of gaseous state directly to solid state without going through liquid state is called_____

A room heater is rated 750 W, 220 V. An electric bulb rated 200 W, 220 V is connected in series with this heater. What will be the power consumed by the bulb and the heater respectively, when the supply is at 220 V?

There is a thin conducting wire carrying current. The value of magnetic field induction at any point on the conductor would be:

When a ray of light enters from denser medium to rarer medium, its velocity is doubled. The critical angle for total internal reflection will be:

Select the correct statement for nuclear force:

A uniform magnetic field, parallel to the plane of the paper existed in space initially directed from left to right. When a bar of soft iron is placed in the field parallel to it, the lines of force passing through it will be represented by:

What will be the energy released in the fusion process of two lighter nuclei of masses \( m_1 \) and \( m_2 \) into a nucleus of mass \( M \)?

A series AC circuit has a resistance 8Ω and a reactance of 6Ω . The impedance of the circuit is:

Two point charges +4µC and -2µC are placed at a certain distance in air. They experience an attractive force F. If they are brought in contact with each other and then separated to the same distance, the new repulsive force between them will be :

Choose the correct statements from the following:
A. The minimum energy required to free the electron from the ground state of the hydrogen atom is 13.6 J
B. The principle quantum number n labels the stationary states in the ascending order of energy
C. Bohr gave the basic idea of discrete energy levels
D. de Broglie hypothesis provided an explanation for Bohr's second postulate for the quantization of angular momentum of the orbiting electron
E. line spectrum provides useful information about the atomic structure.
Choose the correct answer from the options given below:

A proton, a deuteron, an electron, and an \(\alpha\)-particle have the same energy. Their deBroglie wavelengths are \( \lambda_p \), \( \lambda_d \), \( \lambda_e \), and \( \lambda_{\alpha} \), respectively. Which of the following is correct?

\(p→ n+v+ A\)
In this nuclear reaction A is a/an:

Let us consider interference between two sources of intensities I and 4I. What will be the intensity at points where the phase difference is π?

The electric charges are distributed in a small volume. The flux of the electric field through a sphere of radius 10 cm surrounding the total charge is 20 Vm. The flux over a concentric sphere of radius 20 cm will be:

An electric bulb has a filament made of _______

Homi Jahangir Bhabha played an important role in the Discovery of ________

The forbidden energy gaps in conductors, semiconductors and insulators are (E_g)_c, (E_g)_s and (E_g)₁ respectively. What is the relation among them ?

If three cells are connected in parallel as shown in figure, then equivalent emf would be:

The mutual inductance M₁₂ of coil 1 with respect to coil 2:

A galvanometer having a resistance of 8Ω is shunted by a wire of resistance 2Ω. If the current is 1 A, the part of it passing through the shunt will be:

A body oscillate with SHM according to equation (SI unit),
\(x= 10cos (2πt+π/4)\)
at t= 1.5 s, calculate the speed of the body.

There are 4 electric bulb of 50W (each) is used for 5 hour per day. Calculate the energy consumed in the month of January.

The height of a TV tower is 180 m. To what distance the transmission can be made from this tower, if the radius of earth is \(6.4 \times 10^6\) m?

The charge which is a source of electric field but not of magnetic field is:

Which one out of the following is not an application of eddy currents?