POST UTME MADONNA UNIVERSITY 2025 Physics | Objective

Are you preparing for POST UTME MADONNA 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 5 Ω resistor is connected in series with a 10 V battery. If the current through the resistor is 0.2 A, what is the power dissipated by the resistor?
A. 0.1 W
Correct B. 0.2 W
C. 0.5 W
D. 1 W

Correct Answer: B

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Question 2
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. What is the magnitude of the force acting on the particle?
A. 10 N
Correct B. 16/3 N
C. 20 N
D. 24 N

Correct Answer: B

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Question 3
A capacitor of capaci\tance 10 μF is connected in series with a 5 Ω resistor and a 10 V battery. If the current through the resistor is 0.1 A, what is the charge on the capacitor?
A. 0.1 C
Correct B. 0.2 C
C. 0.5 C
D. 1 C

Correct Answer: B

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Question 4
A 2 kg object is moving in a circular path of radius 4 m with a cons\tant speed of 3 m/s. What is the magnitude of the force acting on the object?
A. 5 N
Correct B. 9/2 N
C. 10 N
D. 12 N

Correct Answer: B

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Question 5
A capacitor of capaci\tance 20 μF is connected in series with a 10 Ω resistor and a 20 V battery. If the current through the resistor is 0.2 A, what is the charge on the capacitor?
A. 0.2 C
Correct B. 0.4 C
C. 0.6 C
D. 0.8 C

Correct Answer: B

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Question 6
A 1000-Hz, 10-Vrms \sinusoidal voltage is applied across a capacitor with capaci\tance C. If the current through the capacitor is 5 mA at t = 0, what is the value of C?
A. 1 μF
Correct B. 10 μF
C. 100 μF
D. 1000 μF

Correct Answer: B

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Question 7
A sound wave with a frequency of 200 Hz has a maximum displacement of 0.05 mm. What is the amplitude of the wave?
A. 0.01 mm
Correct B. 0.05 mm
C. 0.1 mm
D. 0.5 mm

Correct Answer: B

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Question 8
A 2-mA current flows through a 10-Ω resistor. What is the power dissipated by the resistor?
Correct A. 0.2 W
B. 2 W
C. 20 W
D. 200 W

Correct Answer: A

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Question 9
A capacitor with capaci\tance C is connected in series with a resistor R. If the current through the circuit is 5 mA and the voltage across the capacitor is 10 V, what is the value of R?
A. 10 Ω
Correct B. 100 Ω
C. 1000 Ω
D. 10000 Ω

Correct Answer: B

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Question 10
A 1000-Hz, 10-Vrms \sinusoidal voltage is applied across a resistor with resis\tance R. If the current through the resistor is 5 mA, what is the value of R?
A. 10 Ω
Correct B. 100 Ω
C. 1000 Ω
D. 10000 Ω

Correct Answer: B

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Question 11
A 2.5 mH inductor is connected in series with a 10 Ω resistor and a 12 V battery. If the initial current is 0 A, calculate the time taken for the current to reach 2 A.
A. 0.5 s
B. 1 s
Correct C. 2 s
D. 3 s

Correct Answer: C

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Question 12
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. Calculate the magnitude of the force acting on the particle.
A. 10 N
B. 20 N
Correct C. 30 N
D. 40 N

Correct Answer: C

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Question 13
A 50 Ω resistor is connected in series with a 20 Ω resistor and a 10 Ω resistor. If a 12 V battery is connected across the circuit, calculate the current flowing through the 50 Ω resistor.
A. 0.2 A
Correct B. 0.4 A
C. 0.6 A
D. 0.8 A

Correct Answer: B

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Question 14
A projectile is launched from the ground with an initial velocity of 20 m/s at an angle of 60° above the horizontal. Calculate the time of flight.
A. 2 s
B. 3 s
Correct C. 4 s
D. 5 s

Correct Answer: C

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Question 15
A 5 μF capacitor is connected in series with a 10 Ω resistor and a 12 V battery. If the initial current is 0 A, calculate the time taken for the current to reach 2 A.
A. 0.5 s
B. 1 s
Correct C. 2 s
D. 3 s

Correct Answer: C

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Question 16
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 subjected to a centripetal force of 12 N, what is the angular velocity of the particle?
A. 2 rad/s
Correct B. 4 rad/s
C. 6 rad/s
D. 8 rad/s

Correct Answer: B

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Question 17
A 10 μF capacitor is connected in series with a 5 kΩ resistor and a 9 V battery. What is the time cons\tant of the circuit?
A. 0.05 s
Correct B. 0.1 s
C. 0.2 s
D. 0.5 s

Correct Answer: B

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Question 18
A block of mass 5 kg is attached to a horizontal spring with a force cons\tant of 200 N/m. The block is displaced by 2 m from its equilibrium position and released from rest. What is the maximum speed of the block?
A. 2 m/s
B. 4 m/s
Correct C. 6 m/s
D. 8 m/s

Correct Answer: C

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Question 19
A 100 Ω resistor is connected in parallel with a 200 Ω resistor. What is the equivalent resis\tance of the circuit?
A. 50 Ω
Correct B. 66.67 Ω
C. 100 Ω
D. 200 Ω

Correct Answer: B

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Question 20
A 10 μF capacitor is connected in parallel with a 10 μF capacitor. What is the equivalent capaci\tance of the circuit?
A. 5 μF
Correct B. 10 μF
C. 15 μF
D. 20 μF

Correct Answer: B

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Question 21
A particle of mass 2 kg is attached to a spring with a spring cons\tant of 100 N/m. It is displaced by 0.5 m from its equilibrium position and released from rest. Assuming the motion is simple harmonic, calculate the angular frequency of the particle.
A. 5 rad/s
B. 10 rad/s
Correct C. 20 rad/s
D. 50 rad/s

Correct Answer: C

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Question 22
A magnetic field of 0.5 T is applied to a coil of wire with 100 turns. The coil has a radius of 0.2 m and a resis\tance of 10 Ω. If the current in the coil is 2 A, calculate the induced emf in the coil.
A. 0.5 V
Correct B. 1 V
C. 2 V
D. 5 V

Correct Answer: B

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Question 23
A ray of light passes from air into a glass block with a re\fractive index of 1.5. If the angle of incidence is 30°, calculate the angle of re\fraction.
A. 20°
B. 30°
Correct C. 40°
D. 50°

Correct Answer: C

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Question 24
A force of 10 N is applied to an object of mass 5 kg. If the object is moving with an initial velocity of 2 m/s, calculate the acceleration of the object.
A. 1 m/s^2
Correct B. 2 m/s^2
C. 5 m/s^2
D. 10 m/s^2

Correct Answer: B

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Question 25
A particle of mass 3 kg is moving with a velocity of 4 m/s. If the particle is subject to a force of 12 N, calculate the work done by the force.
A. 24 J
B. 48 J
Correct C. 60 J
D. 80 J

Correct Answer: C

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