POST UTME MADONNA UNIVERSITY 2025 Physics | Objective

Practice these randomly selected questions to test your readiness.

Question 1
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
B. 1 V
C. 2 V
D. 5 V
Question 2
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
B. 100 Ω
C. 1000 Ω
D. 10000 Ω
Question 3
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
B. 0.4 C
C. 0.6 C
D. 0.8 C
Question 4
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
C. 4 s
D. 5 s
Question 5
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
B. 9/2 N
C. 10 N
D. 12 N
Question 6
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
B. 0.2 C
C. 0.5 C
D. 1 C
Question 7
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
B. 66.67 Ω
C. 100 Ω
D. 200 Ω
Question 8
A 10 Ω resistor is connected in series with a 20 Ω resistor and a 30 Ω resistor. If a 6 V battery is connected across the circuit, what is the current flowing through the 10 Ω resistor?
A. 0.05 A
B. 0.1 A
C. 0.15 A
D. 0.2 A
Question 9
A light source is placed 2 m away from a convex lens of focal length 0.5 m. If the image formed is real and inverted, what is the magnification of the lens?
A. 0.1
B. 0.25
C. 0.5
D. 1
Question 10
A 2-mA current flows through a 10-Ω resistor. What is the power dissipated by the resistor?
A. 0.2 W
B. 2 W
C. 20 W
D. 200 W
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
C. 2 s
D. 3 s
Question 12
A particle of mass 5 kg is moving in a simple harmonic motion with a frequency of 2 Hz. If the amplitude of the motion is 10 m, what is the maximum velocity of the particle?
A. 10 m/s
B. 20 m/s
C. 30 m/s
D. 40 m/s
Question 13
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
B. 10 μF
C. 15 μF
D. 20 μF
Question 14
A light ray passes from air into a glass of re\fractive index 1.5. If the angle of incidence is 30°, what is the angle of re\fraction?
A. 20°
B. 30°
C. 40°
D. 50°
Question 15
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
C. 60 J
D. 80 J

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