CUET Physics Online Practice Set

CUET UG Physics Online Practice Set for preparation of upcoming entrance test in 2025-2026.

Subject: Physics
Medium: English
Questions: 50

Results

#1. If point charges Q₁ = 2×10^-7C and Q₂=3×10^-7C are at 30 cm separation, then find electrostatic force between them.

2 x 10^-3 N

6 x 10^-3 N

5 x 10^-3 N

1 x 10^-3 N

#2. If two bodies are rubbed and one of them acquires q₁ charge and another acquires q₂ charge, then ratio of q₁ : q₂ is

1 : 2

2 : 1

– 1 : 1

1 : 4

#3. Two field lines can never cross each other because

field lines are closed curves

field lines repels each other

field lines crowded only near the charge

field has a unique direction at each point

#4. The potential difference between a cloud and the earth is 10⁷ V. Calculate the amount of energy dissipated when the charge of 100 C is transferred from the cloud to the ground due to lightning bolt.

zero

10⁹ J

60 J

10⁷ J

#5. Two charges 3 x 10^-8C and -2 x 10^-8 C located 15 cm apart. At what point on the line joining the two charges is the electric potential zero?

9 cm

42 cm

18 cm

20 cm

#6. What is the work done in moving a 2µC point charge from corner A to corner B of a square ABCD in figure, when a 10µC charge exists at the centre of the square?

Zero

#7. A wire of resistance 4Ω is stretched to twice its original length. The resistance of stretched wire would be

2 Ω

4 Ω

8 Ω

16 Ω

#8. Kirchhoff’s junction rule is a reflection of

conservation of current density vector

conservation of charge

the fact that the momentum with which a charged particle approaches a junction is unchanged (as a vector) as the charged particle leaves the junction

the fact that there is a net accumulation of charges at a junction

#9. Determine the current drawn from source for the network shown below

$\frac{4}{17}$ A

$\frac{10}{17}$ A

$\frac{6}{17}$ A

$\frac{5}{17}$ A

#10. A deuteron of kinetic energy 50 keV is describing a circular orbit of radius 0.5 m in a plane perpendicular to magnetic field B. The kinetic energy of the proton that describes a circular orbit of radius 0.5 m in the same plane with the same magnetic field B is

25 keV

50 keV

200 keV

100 keV

#11. A moving coil galvanometer is an instrument which

is used to measure emf of cell

is used to measure potential difference

is used to measure resistance

is a deflection type instrument that gives a deflection when a current flows through its coil

#12. A circular coil of wire consisting of 100 turns, each of radius 8.0 cm carries a current of 0.40 A. What is the magnitude of the magnetic field B at the centre of the coil?

4 T

31 x 10^-4 T

2 x 10^-3 T

10^-4 T

#13. A natural bar magnet

is always suspended in north-south direction

always has two poles

is made of iron and its alloys

All of the above

#14. At a certain place, horizontal component is $\sqrt3$ times the vertical component. The angle of dip at this place is

zero

$\pi/3$

$\pi/6$

None of these

#15. A magnet of dipole moment m is aligned in equilibrium position in a magnetic field of intensity B. The work done to rotate it through an angle $\theta$ in the magnetic field is

mB sin $\theta$

mB cos $\theta$

mB (1 – cos $\theta$ )

mB (1 – sin $\theta$ )

#16. Current in the coil is larger, when the magnet is

pushed towards the coil faster

pulled away from the coil faster

Both (a) and (b)

Neither (a) nor (b)

#17. In induction furnace, heat is produced due to

eddy current

resistance

capacitor

None of these

#18. The mutual inductance M12 of coil 1 with respect to coil 2

increases when they are brought nearer

depends on the current passing through the coils

increases when one of them is rotated about an axis

is different from M_{21 of coil 2 with respect to coil 1}

#19. If an AC main supply is given to be 220 V. What would be the average emf during a positive half-cycle?

198 V

386 V

256 V

None of these

#20. If the frequency is doubled, what happen to the capacitive reactance and the current?

Capacitive reactance is halved, the current is doubled

Capacitive reactance is doubled, the current is halved

Capacitive reactance and the current are halved

Capacitive reactance and the current are doubled

#21. Which of the following current changes continuously in magnitude and periodically in direction?

Direct current

Induced current

Alternating current

Displacement current

#22. Out of the following options, which one can be used to produce a propagating electromagnetic wave?

A stationary charge

A chargeless particle

An accelerating charge

A charge moving at constant velocity

#23. The electric field produced by the radiation coming from a 100 W bulb at a distance of 3m is (assume that the efficiency of the bulb is 2.5% and it is a point source.)

4.5 V/m

2.8 V/m

5 V/m

4.07 V/m

#24. In an electromagnetic wave in free space, the root mean square value of the electric field is E_rms = 6 V/m. The peak value of the magnetic field is

1.41 x 10^-8 T

2.83 x 10^-8 T

0.70 x 10^-8 T

4.23 10^-8 T

#25. A ray of light gets reflected from the plane mirror. The incident ray and the reflected ray are perpendicular to each other. The angle of incidence is

60°

30°

45°

0°

#26. The nearer point of hypermetropic eye is 20 cm. Find the power of lens which can be used for its correction.

+ 2.5 D

+ 5.0 D

– 1.5 D

+ 1.5 D

#27. When a light ray enters from oil to glass, then on oil-glass interface, the velocity of light changes by a factor of [given, n_oil =2, n_glass = 3/2 ]

$\frac43$

$\frac34$

#28. Two coherent sources of light can be obtained by

two different lamps

two different lamps but of the same power

two different lamps of same power and having the same colours

None of the above

#29. If a source is at infinity, then wavefronts reaching to observer are

cylindrical

spherical

plane

conical

#30. If the amplitude ratio of two sources producing interference is 3 : 5, then the ratio of intensities produced by each is

3 : 5

5 : 3

9 : 25

25 : 9

#31. Which of the following can be used to control the intensity, in sunglasses, window-panes etc?

Transverse wave

Polaroids

Plane polarised wave

Polarised wave

#32. The specific charge of a proton is 9.6 x 10⁷ C kg^-1. The specific charge of an a-particle will be

96. x 10⁷ C kg^-1

192 x 10⁷ C kg^-1

4.8 x 10⁷ C kg^-1

24 x 10⁷ C kg^-1

#33. The value of stopping potential V₀ from the given graph is

– 0.54 V

0.54 V

0.2 V

– 0.2 V

#34. If $\triangle$ x is uncertainty in the specification of position and $\triangle$ p is the uncertainty in specification of momentum of an electron, then the product $\triangle$ x and $\triangle$ p is of the order of ћ such that ћ

$\frac {h}{2 \pi}$

$\frac {2h}{ \pi}$

$10^{-19}$

$10^{-31}$

#35. Photoemission with visible light is possible in

rubidium

cesium

zinc

Both (a) and (b)

#36. Trajectory of an a-particle is shown in the figure below, then impact parameter is

#37. The ratio of kinetic energy to the total energy of an electron in a Bohr orbit of the hydrogen atom, is

2 : – 1

1 : – 1

1 : 1

1 : – 2

#38. A 12.75 eV electron beam is used to bombard gaseous hydrogen at room temperature, then wavelengths emitted are in

either Paschen, Lyman or Balmer series

either Brackett, Pfund or Lyman series

either Paschen, Brackett or Balmer series

either Lyman, Balmer or Brackett series

#39. Isotopes of an atom

have different electronic structure

does not occupy same place in periodic table

contains same number of protons

have same number of neutrons

#40. Nuclear fusion is common to the pair
I. uranium based reactor
II. hydrogen bomb
III. energy production in sun
IV. atom bomb

Both I and II

Both II and III

Both III and IV

Both II and IV

#41. In solid state semiconductors, the number and the direction of the flow of charge carriers can be altered by

illuminating light

supplying heat

varying applied voltage

All of the above

#42. In the circuit shown, the voltage difference between A and B, if the diode forward voltage drop is 0.3V is

1.3 V

2.3 V

0.5 V

#43. In a common emitter amplifier circuit using an n-p-n transistor, the phase difference between the input and the output voltages will be

90°

135°

180°

45°

#44. LED’s are not used for room lighting (although they are used for automobile bulbs and in industrial lighting) because

our eyes are not comfortable with very intense light

our eyes are not comfortable with monochromatic light

LED’s are much costlier than bulbs tubelights and CFL’s

LED manufacture in mass production will be a very polluting process

#45. A modern communication system acts as a

transmitter

receiver

messenger

None of these

#46. A ground receiver in line-of-sight communication cannot receive direct waves due to

its low frequency

curvature of earth

its high intensity

smaller antenna

#47. Radio waves are propagated through

ground wave

sky wave

space wave

All of these

#48. Two field lines can never cross each other because

field lines are closed curves

field lines repels each other

field lines crowded only near the charge

field has a unique direction at each point

#49. A singal spreads over a range of frequencies called

signal bandwidth

signal baseband

signal audio frequency

signal video frequency

#50. A concave mirror for face viewing has focal length of 0.4 m. The distance at which you hold the mirror from your face in order to see your image upright with a magnification of 5 is

0.16 m

1.60 m

0.32 m

0.24 m

FINISH

Results

#1. If point charges Q1 = 2×10-7C and Q2=3×10-7C are at 30 cm separation, then find electrostatic force between them.

#2. If two bodies are rubbed and one of them acquires q1 charge and another acquires q2 charge, then ratio of q1 : q2 is

#3. Two field lines can never cross each other because

#4. The potential difference between a cloud and the earth is 107 V. Calculate the amount of energy dissipated when the charge of 100 C is transferred from the cloud to the ground due to lightning bolt.

#5. Two charges 3 x 10-8C and -2 x 10-8 C located 15 cm apart. At what point on the line joining the two charges is the electric potential zero?

#6. What is the work done in moving a 2µC point charge from corner A to corner B of a square ABCD in figure, when a 10µC charge exists at the centre of the square?

#7. A wire of resistance 4Ω is stretched to twice its original length. The resistance of stretched wire would be

#8. Kirchhoff’s junction rule is a reflection of

#9. Determine the current drawn from source for the network shown below

#10. A deuteron of kinetic energy 50 keV is describing a circular orbit of radius 0.5 m in a plane perpendicular to magnetic field B. The kinetic energy of the proton that describes a circular orbit of radius 0.5 m in the same plane with the same magnetic field B is

#11. A moving coil galvanometer is an instrument which

#12. A circular coil of wire consisting of 100 turns, each of radius 8.0 cm carries a current of 0.40 A. What is the magnitude of the magnetic field B at the centre of the coil?

#13. A natural bar magnet

#14. At a certain place, horizontal component is times the vertical component. The angle of dip at this place is

#15. A magnet of dipole moment m is aligned in equilibrium position in a magnetic field of intensity B. The work done to rotate it through an angle in the magnetic field is

#16. Current in the coil is larger, when the magnet is

#17. In induction furnace, heat is produced due to

#18. The mutual inductance M12 of coil 1 with respect to coil 2

#19. If an AC main supply is given to be 220 V. What would be the average emf during a positive half-cycle?

#20. If the frequency is doubled, what happen to the capacitive reactance and the current?

#21. Which of the following current changes continuously in magnitude and periodically in direction?

#22. Out of the following options, which one can be used to produce a propagating electromagnetic wave?

#23. The electric field produced by the radiation coming from a 100 W bulb at a distance of 3m is (assume that the efficiency of the bulb is 2.5% and it is a point source.)

#24. In an electromagnetic wave in free space, the root mean square value of the electric field is Erms = 6 V/m. The peak value of the magnetic field is

#25. A ray of light gets reflected from the plane mirror. The incident ray and the reflected ray are perpendicular to each other. The angle of incidence is

#26. The nearer point of hypermetropic eye is 20 cm. Find the power of lens which can be used for its correction.

#27. When a light ray enters from oil to glass, then on oil-glass interface, the velocity of light changes by a factor of [given, noil =2, nglass = 3/2 ]

#28. Two coherent sources of light can be obtained by

#29. If a source is at infinity, then wavefronts reaching to observer are

#30. If the amplitude ratio of two sources producing interference is 3 : 5, then the ratio of intensities produced by each is

#31. Which of the following can be used to control the intensity, in sunglasses, window-panes etc?

#32. The specific charge of a proton is 9.6 x 107 C kg-1. The specific charge of an a-particle will be

#33. The value of stopping potential V0 from the given graph is

#34. If x is uncertainty in the specification of position and p is the uncertainty in specification of momentum of an electron, then the product x and p is of the order of ћ such that ћ

#35. Photoemission with visible light is possible in

#36. Trajectory of an a-particle is shown in the figure below, then impact parameter is

#37. The ratio of kinetic energy to the total energy of an electron in a Bohr orbit of the hydrogen atom, is

#38. A 12.75 eV electron beam is used to bombard gaseous hydrogen at room temperature, then wavelengths emitted are in

#39. Isotopes of an atom

#40. Nuclear fusion is common to the pair I. uranium based reactor II. hydrogen bomb III. energy production in sun IV. atom bomb

#41. In solid state semiconductors, the number and the direction of the flow of charge carriers can be altered by

#42. In the circuit shown, the voltage difference between A and B, if the diode forward voltage drop is 0.3V is

#43. In a common emitter amplifier circuit using an n-p-n transistor, the phase difference between the input and the output voltages will be

#44. LED’s are not used for room lighting (although they are used for automobile bulbs and in industrial lighting) because

#45. A modern communication system acts as a

#46. A ground receiver in line-of-sight communication cannot receive direct waves due to

#47. Radio waves are propagated through

#48. Two field lines can never cross each other because

#49. A singal spreads over a range of frequencies called

#50. A concave mirror for face viewing has focal length of 0.4 m. The distance at which you hold the mirror from your face in order to see your image upright with a magnification of 5 is

Related Posts

#1. If point charges Q₁ = 2×10^-7C and Q₂=3×10^-7C are at 30 cm separation, then find electrostatic force between them.

#2. If two bodies are rubbed and one of them acquires q₁ charge and another acquires q₂ charge, then ratio of q₁ : q₂ is

#4. The potential difference between a cloud and the earth is 10⁷ V. Calculate the amount of energy dissipated when the charge of 100 C is transferred from the cloud to the ground due to lightning bolt.

#5. Two charges 3 x 10^-8C and -2 x 10^-8 C located 15 cm apart. At what point on the line joining the two charges is the electric potential zero?

#14. At a certain place, horizontal component is $\sqrt3$ times the vertical component. The angle of dip at this place is

#15. A magnet of dipole moment m is aligned in equilibrium position in a magnetic field of intensity B. The work done to rotate it through an angle $\theta$ in the magnetic field is

#24. In an electromagnetic wave in free space, the root mean square value of the electric field is E_rms = 6 V/m. The peak value of the magnetic field is

#27. When a light ray enters from oil to glass, then on oil-glass interface, the velocity of light changes by a factor of [given, n_oil =2, n_glass = 3/2 ]

#32. The specific charge of a proton is 9.6 x 10⁷ C kg^-1. The specific charge of an a-particle will be

#33. The value of stopping potential V₀ from the given graph is

#34. If $\triangle$ x is uncertainty in the specification of position and $\triangle$ p is the uncertainty in specification of momentum of an electron, then the product $\triangle$ x and $\triangle$ p is of the order of ћ such that ћ

#40. Nuclear fusion is common to the pair
I. uranium based reactor
II. hydrogen bomb
III. energy production in sun
IV. atom bomb