List of top Physics Questions asked in CUET (UG)

The circuits where transformers are used:

For a medium with permittivity (e) and permeability (µ), the speed of light (v) is given by:

Two charges 5 µC and -2 µC (with no external field) are placed at (-9 cm, 0, 0) and (9 cm, 0, 0) respectively. The work required to separate the two charges infinitely away from each other is :

Match List I with List II using Bohr’s Atomic Model

List I	List II
(A) Radius of electron orbit	(I) directly proportional to n2
(B) Angular momentum of electron	(II) directly proportional to n
(C) Velocity of electron	(III) inversely proportional to n
(D) Energy of electron	(IV) inversely proportional to n2

An isolated sphere has a capacitance of 60 pF, what is the radius of the sphere?

Find the effective impedance in the circuit if the source is: a) DC source and b) High frequency AC source

Match List I with List II

Choose the correct answer from the options given below:

At a place, the horizontal component of earth's magnetic field is $4 \times 10^{-4}T$ and angle of dip is 60°. The value of horizontal component of earth's magnetic field at the equator is :

The forbidden energy band gap in conductors, semi conductors and insulators are E_G1, E_G2 and E_G3, respectively. The relation among them is

Which of the following statement is correct for a potentiometer ?

Following are the wavelength of some constituents of the electromagnetic spectrum. The wavelength range that are used in Radar system for Aircraft navigation is:
(A) 1 mm to 700 nm
(B) 0.1 m to 1 mm
(C) 400 nm to 1 nm
(D) < 10-3 nm
(E) > 1m
Choose the correct answer from the options given below:

The graph shows the variation of the magnification (m) produced by a thin lens with image distance (v). The focal length of the lens is:

The susceptibility ($X_m$) and permeability (μ) of a perfectly diamagnetic substance are:

Ferro-magnetic materials used in transformer core must have:

Match List I with List II

List I: Frequency Range	List II: Types of Waves
(I) 1 × 1016 − 3 × 1021 Hz	(D) γ-rays
(II) 1 × 109 − 3 × 1011 Hz	(B) Microwaves
(III) 1 × 108 − 5 × 1022 Hz	(A) X-rays
(IV) 5 × 105 − 109 Hz	(C) Radio waves

To protect galvanometer from possible damages due to large current, which of the following should be connected to its coil:

A cell of constant emf is first connected to a resistance \(R_1\) and then to \(R_2\). If power delivered in both cases are same, then the internal resistance of the cell is:

Match List I with List II

	LIST I		LIST II
A.	Infra red waves	I.	Eye surgery
B.	Microwaves	II.	1 nm to 10-3 nm
C.	Ultraviolet	III.	Heat waves
D.	X-rays	IV.	Produced by special vaccum tubes

Choose the correct answer from the options given below:

Choose the correct statements:
(A) A nuclide is represented as \(^Z_AX\)
(B) Nuclids with same number of protons are called isotopes
(C) a-ray scattering experiments allow determination of the nuclear radius
(D) Nuclids with same number of neutrons are called isotones
(E) The nuclear force distinguishes between neutron and proton
Choose the correct answer from the options given below:

A coil having 'n' turns and resistance 'R'Ω is connected with a galvanometer of resistance '4R' Ω. What is the induced current in the circuit when this combination (coil+galvanometer) is moved in time t from a magnetic flux Φ1 to Φ2?

An emf of 0.5 V is developed in the secondary coil, when current in primary coil changes from 5.0 A to 2.0 A in 300 milliseconds. The mutual inductance of two coils would be:

The displacement current due to time varying electric field is given by

Match List I with List II

Choose the correct answer from the options given below:

An electromagnetic wave going through vacuum is described by \( E = E_0 \sin(kx - \omega t) \), \( B = B_0 \sin(kx - \omega t) \), then:

A flask contains Argon and Chlorine in the ratio of 2:1 by mass. The temperature of the mixture is 27°C. The ratio of root mean square speed of molecules of two gases will be: (atomic mass of Argon =40 u and molecular mass of Chlorine = 71 u)