POST UTME UNIOSUN 2023 Physics | Objective

Prepare for your exams with POST UTME UNIOSUN questions? Reviewing past/model questions is one of the most effective ways to guarantee a high score. This practice hub features authentic 2023 Physics (Objective) questions designed to simulate the real exam environment.

Practice these randomly selected questions to test your readiness.

Question 1 View Details
A uniform magnetic field of magnitude 2.0 T is directed along the positive z-axis. A current of 5.0 A flows in a circular loop of radius 0.20 m, placed in the x-y plane. What is the magnitude of the magnetic moment of the loop?
A. 0.10 A m^2
Correct B. 0.20 A m^2
C. 0.30 A m^2
D. 0.40 A m^2

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 2 View Details
A point charge of +2.0 μC is placed at the origin. What is the electric potential at a point 0.50 m away from the charge, in the x-direction?
A. 1000 V
Correct B. 2000 V
C. 3000 V
D. 4000 V

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 3 View Details
A circuit consists of a 10 Ω resistor, a 20 Ω resistor, and a 30 Ω resistor connected in series. A voltage of 12 V is applied across the circuit. What is the current flowing through the circuit?
A. 0.50 A
B. 1.00 A
Correct C. 1.50 A
D. 2.00 A

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 4 View Details
A particle of mass 2.0 kg is moving in a circular path with a radius of 0.50 m. The particle has a speed of 5.0 m/s. What is the magnitude of the centripetal force acting on the particle?
A. 10 N
B. 20 N
Correct C. 30 N
D. 40 N

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 5 View Details
A block of mass 5.0 kg is placed on a frictionless surface. A force of 20 N is applied to the block, cau\sing it to accelerate at 2.0 m/s^2. What is the magnitude of the normal force acting on the block?
A. 10 N
Correct B. 20 N
C. 30 N
D. 40 N

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 6 View Details
A particle of mass 2 kg is moving in a circular path of radius 3 m with a cons\tant speed of 4 m/s. If the particle is subject to a centripetal force of 12 N, what is the magnitude of the acceleration of the particle?
A. 4 m/s^2
B. 6 m/s^2
Correct C. 8 m/s^2
D. 10 m/s^2

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 7 View Details
A wave has a frequency of 50 Hz and a wavelength of 0.2 m. What is the speed of the wave?
A. 5 m/s
Correct B. 10 m/s
C. 15 m/s
D. 20 m/s

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 8 View Details
A gas is heated from 20°C to 80°C at cons\tant volume. If the initial pressure is 1 atm, what is the final pressure?
A. 2 atm
B. 3 atm
Correct C. 4 atm
D. 5 atm

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 9 View Details
A vector has a magnitude of 5 units and makes an angle of 30° with the positive x-axis. What is the x-component of the vector?
Correct A. 4.33 units
B. 4.58 units
C. 4.83 units
D. 5.08 units

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 10 View Details
A circuit consists of a 2 Ω resistor, a 3 Ω resistor, and a 4 Ω resistor connected in series. If a voltage of 12 V is applied across the circuit, what is the current in the circuit?
A. 1.33 A
B. 1.67 A
Correct C. 2 A
D. 2.33 A

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 11 View Details
A uniform magnetic field of strength 0.5 T is applied along the z-axis. A current of 2 A flows in a circular loop of radius 0.1 m, placed in the x-y plane. What is the magnitude of the magnetic moment of the loop?
Correct A. 0.02 A m^2
B. 0.1 A m^2
C. 0.5 A m^2
D. 1 A m^2

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 12 View Details
A 12 V battery is connected to a 4 Ω resistor in series with a 6 Ω resistor. What is the current flowing through the 4 Ω resistor?
A. 0.5 A
Correct B. 1 A
C. 2 A
D. 3 A

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 13 View Details
A particle of mass 2 kg is attached to a spring with a spring cons\tant of 100 N/m. It is displaced by 0.2 m from its equilibrium position and released from rest. What is the frequency of its oscillations?
A. 0.5 Hz
Correct B. 1 Hz
C. 2 Hz
D. 5 Hz

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 14 View Details
A radioactive sample decays at a rate of 0.05% per hour. If the initial activity is 1000 Bq, what is the activity after 5 hours?
Correct A. 900 Bq
B. 950 Bq
C. 990 Bq
D. 1000 Bq

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 15 View Details
A 50 Hz AC voltage is applied across a 10 Ω resistor. What is the rms value of the current flowing through the resistor?
A. 0.5 A
Correct B. 1 A
C. 2 A
D. 5 A

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 16 View Details
A beam of light of wavelength 500 nm is incident on a glass slab of re\fractive index 1.5. If the angle of incidence is 30°, calculate the angle of re\fraction.
Correct A. 20°
B. 30°
C. 40°
D. 50°

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 17 View Details
A particle of mass 2 kg is moving in a circular path of radius 3 m with a speed of 4 m/s. Calculate the magnitude of the centripetal force acting on the particle.
A. 10 N
B. 20 N
Correct C. 30 N
D. 40 N

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 18 View Details
A circuit consists of a 12 V battery, a 4 Ω resistor, and a 6 Ω resistor connected in parallel. Calculate the total resis\tance of the circuit.
A. 2 Ω
Correct B. 3 Ω
C. 4 Ω
D. 6 Ω

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 19 View Details
A gas is heated from 20°C to 50°C at cons\tant pressure. Calculate the final volume of the gas if the initial volume is 2 L.
A. 4 L
B. 5 L
Correct C. 6 L
D. 8 L

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 20 View Details
A lens of focal length 20 cm is used to form an image of an object at a dis\tance of 30 cm from the lens. Calculate the magnification of the lens.
A. 1
Correct B. 2
C. 3
D. 4

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 21 View Details
A particle of mass 1 kg is moving in a circular path of radius 2 m with a speed of 3 m/s. Calculate the magnitude of the centripetal acceleration of the particle.
A. 1 m/s^2
B. 2 m/s^2
Correct C. 3 m/s^2
D. 4 m/s^2

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 22 View Details
A circuit consists of a 12 V battery, a 4 Ω resistor, and a 6 Ω resistor connected in series. Calculate the total resis\tance of the circuit.
A. 8 Ω
B. 10 Ω
Correct C. 12 Ω
D. 14 Ω

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 23 View Details
A gas is heated from 20°C to 50°C at cons\tant volume. Calculate the final pressure of the gas if the initial pressure is 2 atm.
A. 4 atm
B. 5 atm
C. 6 atm
D. 8 atm

Correct Answer: VIEW ANSWER

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 24 View Details
A point charge of +2 μC is placed at the origin. A second point charge of -3 μC is placed 0.5 m away from the first charge. What is the magnitude of the electric field at a point 0.2 m away from the second charge, in the direction of the second charge?
A. 2.5 × 10^4 N/C
B. 5.0 × 10^4 N/C
Correct C. 1.0 × 10^5 N/C
D. 2.0 × 10^5 N/C

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 25 View Details
A lens of focal length 20 cm is placed in a beam of light. The beam is parallel to the principal axis. What is the nature of the image formed by the lens?
Correct A. Real and inverted
B. Virtual and upright
C. Real and upright
D. Virtual and inverted

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Master the Exam!

You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.

Unlock Full Access Available for Android & Windows
Help others prepare! Share this practice hub:
Chat with Support