List of top Physics Questions asked in CUET (UG)

Linear magnification produced by a mirror is +1.5. What is the correct mirror and object position?
The correct curve between stopping potential \( V_0 \) and intensity of incident radiation \( I \) at constant frequency is:
The type of wavefront that emerges from a distant light source is:
An astronomical telescope consists of an objective of focal length 50 cm and eyepiece of focal length 2 cm is focused on the moon so that the final image is formed at the least distance of distinct vision (25 cm). Assuming angular diameter of the moon as \( \frac{1}{2^\circ} \) at the objective, the angular size of image is:
A spherical air lens of radii \( R_1 = R_2 = 10 \, \text{cm} \) is cut from a glass (\(\mu = 1.5\)) cylinder as shown in the figure. Its focal length is \( f_1 \). If a liquid of refractive index \( \mu_2 \) is filled in the space, then the focal length of the liquid lens becomes \( f_2 \). Calculate \( f_1 \) and \( f_2 \). Choose the correct options from the following.
spherical air lens of radii R1 = R2 = 10
In Young's double slit experiment, yellow light of wavelength 640 nm produces fringes of width 0.8 mm. What will be the fringe width if the light source is replaced by another monochromatic source of wavelength 720 nm and the separation between the slits is made thrice?
An electromagnetic wave going through vacuum is described by \( E = E_0 \sin(kx - \omega t) \), \( B = B_0 \sin(kx - \omega t) \), then:
Light is traveling from one medium to another medium as given in the options. In which of the following options total internal reflection will be possible?
Match List I with List II
List I: Frequency RangeList 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
Which one out of the following is not an application of eddy currents?
When 100 V dc is applied across a solenoid, a current of 1 A flows in it. When 100 V ac is applied across the same solenoid the current drops to 0.5 A. If the frequency of the ac source is 50 Hz, the impedance and inductance of the solenoid are:
In an a.c. circuit, the rms voltage is \(100\sqrt{2}\) V. The peak value of voltage would be:
A square loop of copper wire is pulled through a region of uniform magnetic field as shown. Rank the pulling forces \(F_A\), \(F_B\), \(F_C\), and \(F_D\) that must be applied to keep the loop moving with constant speed (\(\vec{v}\)):
square loop of copper wire is pulled through a region
Find the effective impedance in the circuit if the source is: a) DC source and b) High frequency AC source
effective impedance in the circuit if the source
In AC circuits, the relation that holds is \( Z = \frac{E_U}{I_U} \), where:
The coercivity of a bar magnet is 140 A m\(^{-1}\). To demagnetize it, it is placed inside a solenoid of length 1.6 m and number of turns 112. What is the current flowing through the solenoid?
The charge which is a source of electric field but not of magnetic field is:
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:
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:
There is a thin conducting wire carrying current. The value of magnetic field induction at any point on the conductor would be:
Magnetic field \(|B|\) at a point \(P\) in the following network is:
Magnetic field |B| at a point P
Identify the graph from the following showing the temperature dependence of resistivity for a typical semiconductor?
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?
The electric field intensity due to an infinite thin plane sheet of surface charge density \(\sigma\) is: