CUET Free MOCK Test of Physics: Check knowledge for upcoming exam 2026

As per Bohr's model the energy (in eV) required to remove electron from ground state of Li⁺⁺ (doubly ionised lithium atom) is

A telescope has an objective lens of 0.1 m diameter and is situated at a distance of 500 m from two objects. What will be the minimum distance between these two objects which can be resolved by the telescope? The mean wavelength of light is 600 nm.

The electron in a hydrogen atom rises from its n = 1 state to n = 4 state by absorbing energy. The energy of the electron in the n = 1 state is –13.6 eV. How much energy is absorbed by the electron in transition?

For which of the following, a capacitor acts as an infinite resistance component in the circuit?

Which of the following is not the property of β– ray?

A charged ball ‘M’ hangs from a silk thread ‘S’ which makes an angle β, with a large charged conducting sheet ‘P’ as shown. The surface charge density σ of the sheet is proportional to

A metal conductor of length 1 m rotates in vertical plane about an axis passing through one of its ends at angular velocity 4 rad s^–1. What is the emf developed between the two ends of the conductor, if the horizontal component of the earth’s magnetic field is 0.2 G?

A television transmitting antenna is 84 m tall. How much service area can it cover, if the receiving antenna is at the ground level?

In a concave mirror, an object is placed at a distance x from the focus and the image is formed at a distance y from the focus. What is the focal length of the mirror?

For transmitting a modulated signal of wavelength λ, the antenna should have minimum size

Which of the following statements are correct?
A. Moving charges produce a magnetic field in the surrounding space.
B. An instrument called the current balance is used to measure mechanical force between two parallel conductors.
C. The electron has an intrinsic magnetic moment, which is known as the orbital magnetic moment.
D. Magnetic field of several sources is the vector addition of magnetic field of each individual source.
E. The radius of the circular component of motion is called the radius of the helix.
Choose the correct answer from the options given below:

In a feedback amplifier, if the feedback voltage is in opposite phase, the gain is less than 1. Then it will

When a number of capacitors are connected in parallel between two points increases, the equivalent capacitance

A radioactive isotope has a half life of T years. How long (in years) will it take the activity to reduce to 3.125% of it's original value?

What is the approximate wavelength of the radiation emitted when the electron in an hydrogen atom jumps from n = ∞ to n = 3?

Which one among the following shows particle nature of light?

The refractive index of air with respect to glass 2/3. The refractive index of diamond will respect to air is 2.4. What will be the refractive index of glass with respect to diamond?

When a steady current flows in a metallic conductor of non-uniform cross section. Which of these quantities is constant along the conductor?
A. Current
B. Electric field
C. Drift speed
D. Current density E. Potential gradient
Choose the correct answer from the options given below:

If possible difference V applied across a metallic wire is increased by V, how will the drift velocity of the electron change?

A metal plate is getting heated. It can be because of
A. An alternating current is passing through the plate.
B. It is placed in a time varying magnetic field.
C. A direct current is passing through the plate.
D. It is placed in a space varying magnetic field, but does not vary with time
E. It is placed in a time constant magnetic field
Choose the correct answer from the options given below:

Figure below shows a plot of current I through the cross-section of a wire over a time interval of 12 s. How much charge flows through the wire during this time period?

The total charge of an electric dipole is (Where ‘q’ is the point charge on either side of the dipole and ‘e’ is the charge of an electron)

An infinitely long straight conductor carries a current of 150 A. At what distance from the conductor is the magnetic field caused by the current equal to 10^–4 T?

In a potentiometer arrangement, a cell of emf 1.5 V gives a balance point at 45.0 cm length of the wire. If the cell is replaced by another cell of emf 2.25 V. Where will the balance point shift to?

Which of the following gates can give AND gate by its repetitive use?

A charge Q is divided into two parts, q and (Q – q). The repulsion between them is maximum when Q : q is

When temperature of a ferromagnetic material is increased by 20%, what is the percentage change in its magnetic susceptibility?

Two coherent monochromatic light beams of intensities 16I and 4I are superposed. The maximum and minimum possible intensities in the resulting beam are

A proton and an alpha particle enter a uniform magnetic field with the same velocity and move along circular paths. The time period of the alpha particle will be:

A semiconducting device is connected as shown in the figure A current is found to pass through the circuit. On reversing the polarity of the battery. The current in the circuit drops to almost zero. What is the device?

A parallel plate air capacitor has a capacity ‘C’, distance of separation between its plates is ‘x’ and potential difference applied across the plates is V. What is the force of attraction between the plates of the parallel plate air capacitor?

The capacitance of a capacitor is 4 μF and it's potential is 100 V. The energy released on discharging it fully will be