POST UTME NILE UNIVERSITY 2025 Physics | Objective

Are you preparing for POST UTME NILE UNIVERSITY exams? Reviewing past questions is one of the most effective ways to guarantee a high score. This practice hub features authentic 2025 Physics (Objective) questions designed to simulate the real exam environment.

Practice these randomly selected questions to test your readiness.

Question 1
A parallel plate capacitor has plates of area 0.04 m^2 and separation 0.02 m. If the capaci\tance is 8.0 x 10^-10 F, what is the charge stored when the potential difference between the plates is 100 V?
A. 4.0 x 10^-8 C
Correct B. 8.0 x 10^-8 C
C. 1.6 x 10^-7 C
D. 3.2 x 10^-7 C

Correct Answer: B

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Question 2
A particle of mass 2.0 kg is moving in a circular path of radius 3.0 m with a cons\tant speed of 4.0 m/s. What is the magnitude of the net force acting on the particle?
A. 6.0 N
B. 12.0 N
Correct C. 24.0 N
D. 48.0 N

Correct Answer: C

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Question 3
A 100 V AC source is connected to a 50 Ω resistor. If the current is 2.0 A, what is the power consumed by the resistor?
A. 200 W
Correct B. 400 W
C. 600 W
D. 800 W

Correct Answer: B

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Question 4
A photon of wavelength 500 nm is incident on a metal surface. If the work function of the metal is 2.5 eV, what is the maximum kinetic energy of the emitted electron?
A. 1.0 eV
B. 2.0 eV
Correct C. 3.0 eV
D. 4.0 eV

Correct Answer: C

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Question 5
A particle of mass 1.0 kg is moving in a circular path of radius 2.0 m with a cons\tant speed of 3.0 m/s. If the particle is subjected to a uniform magnetic field of strength 0.5 T, what is the magnitude of the magnetic force acting on the particle?
A. 0.5 N
B. 1.0 N
Correct C. 1.5 N
D. 2.0 N

Correct Answer: C

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Question 6
A 50 Hz, 200 V AC supply is connected to a series RLC circuit with R = 100 Ω, L = 0.2 H, and C = 10 μF. Calculate the impedance of the circuit.
A. 150 Ω
B. 200 Ω
Correct C. 250 Ω
D. 300 Ω

Correct Answer: C

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Question 7
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. Calculate the angular frequency of the simple harmonic motion.
A. 5 rad/s
B. 10 rad/s
Correct C. 15 rad/s
D. 20 rad/s

Correct Answer: C

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Question 8
A gas at 300 K and 1 atm is compressed to 2 atm. Calculate the final temperature of the gas.
A. 400 K
Correct B. 500 K
C. 600 K
D. 700 K

Correct Answer: B

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Question 9
A wave of frequency 100 Hz and wavelength 2 m is traveling through a medium. Calculate the speed of the wave.
A. 200 m/s
B. 300 m/s
Correct C. 400 m/s
D. 500 m/s

Correct Answer: C

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Question 10
A circuit consists of a 10 Ω resistor and a 20 μF capacitor in series. The circuit is connected to a 50 Hz AC supply. Calculate the reac\tance of the capacitor.
A. 318 Ω
B. 318.3 Ω
Correct C. 318.32 Ω
D. 318.32 Ω

Correct Answer: C

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Question 11
A parallel plate capacitor has plates of area 0.04 m^2 and separation 0.02 m. If the capaci\tance is 2.5 x 10^-10 F, what is the charge on the plates?
A. 1.25 x 10^-9 C
Correct B. 2.5 x 10^-9 C
C. 5.0 x 10^-9 C
D. 7.5 x 10^-9 C

Correct Answer: B

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Question 12
A particle of mass 0.5 kg is attached to a spring with spring cons\tant 100 N/m. If the particle is displaced by 0.2 m from its equilibrium position and released from rest, what is its angular frequency?
A. 1.0 rad/s
B. 2.0 rad/s
Correct C. 5.0 rad/s
D. 10.0 rad/s

Correct Answer: C

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Question 13
A gas at 300 K expands from 0.1 m^3 to 0.5 m^3 against a cons\tant external pressure of 2.0 x 10^5 Pa. What is the work done by the gas?
A. 1.0 x 10^4 J
B. 2.0 x 10^4 J
Correct C. 3.0 x 10^4 J
D. 4.0 x 10^4 J

Correct Answer: C

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Question 14
A wave of frequency 100 Hz and wavelength 0.5 m is traveling through a medium with speed 300 m/s. What is the amplitude of the wave?
A. 0.01 m
Correct B. 0.02 m
C. 0.03 m
D. 0.04 m

Correct Answer: B

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Question 15
A simple p\endulum of length 1.0 m is released from rest at an angle of 30 degrees from the vertical. What is the time period of the p\endulum?
A. 1.0 s
Correct B. 2.0 s
C. 3.0 s
D. 4.0 s

Correct Answer: B

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