POST UTME RSU 2025 Physics | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A particle is projected at an angle of 60° to the horizontal with an initial velocity of 20 m/s. If the acceleration due to gravity is 9.8 m/s², what is the time of flight?
A. 2.5 s
B. 3.3 s
C. 4.2 s
D. 5.0 s
Question 2
A 2 kg block is attached to a horizontal spring with a force cons\tant of 100 N/m. If the block is displaced by 0.2 m from its equilibrium position and released, calculate the maximum speed of the block.
A. 2 m/s
B. 4 m/s
C. 6 m/s
D. 8 m/s
Question 3
A 10 kg block is attached to a horizontal, massless spring with a force cons\tant of 50 N/m. The block is displaced by 0.10 m from its equilibrium position and released from rest. Assuming the block undergoes simple harmonic motion, calculate the maximum speed of the block as it passes through the equilibrium position.
A. 0.25 m/s
B. 0.50 m/s
C. 0.75 m/s
D. 1.00 m/s
Question 4
A current of 5 A flows through a wire of resis\tance 2 Ω. If the voltage across the wire is 10 V, what is the power consumed?
A. 25 W
B. 50 W
C. 100 W
D. 200 W
Question 5
A circuit consists of a 12 V battery, a 4 Ω resistor, and an inductor of 2 H. If the switch is closed at t = 0, what is the current in the circuit at t = 2 s?
A. 0.5 A
B. 1 A
C. 2 A
D. 4 A
Question 6
A heat engine operates between two temperatures of 500 K and 300 K. If the engine has an efficiency of 30%, what is the temperature of the hot reservoir?
A. 400 K
B. 500 K
C. 600 K
D. 700 K
Question 7
A light ray passes through a convex lens of focal length 0.2 m. If the object dis\tance is 0.5 m, calculate the image dis\tance.
A. 0.33 m
B. 0.5 m
C. 0.67 m
D. 0.8 m
Question 8
A 10 μF capacitor is connected in series with a 5 kΩ resistor. If a 10 V battery is connected across the circuit, calculate the time cons\tant of the circuit.
A. 0.5 s
B. 1 s
C. 2 s
D. 5 s
Question 9
A nucleus of mass number 20 has a binding energy of 150 MeV. What is the binding energy per nucleon?
A. 7.5 MeV
B. 8.0 MeV
C. 8.5 MeV
D. 9.0 MeV
Question 10
A 5 kg block is moving with a velocity of 2 m/s. It collides with a 3 kg block that is initially at rest. After the collision, the 5 kg block has a velocity of 1 m/s. What is the velocity of the 2 kg block after the collision?
A. 0.5 m/s
B. 1 m/s
C. 1.5 m/s
D. 2 m/s
Question 11
A 50 Hz AC voltage is applied across a 20 Ω resistor. If the maximum current is 5 A, calculate the power consumed by the resistor.
A. 250 W
B. 500 W
C. 750 W
D. 1000 W
Question 12
A beam of light 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 13
A 2.0 kg block is attached to a horizontal, massless spring with a force cons\tant of 100 N/m. The block is displaced by 0.20 m from its equilibrium position and released from rest. Assuming the block undergoes simple harmonic motion, calculate the maximum speed of the block as it passes through the equilibrium position.
A. 0.50 m/s
B. 1.00 m/s
C. 1.50 m/s
D. 2.00 m/s
Question 14
A circular motion is described by the equation x(t) = A \cos\( \omega t + \phi \). If the angular frequency is 2 rad/s and the phase angle is 30°, calculate the velocity of the particle at time t = 1 s.
A. 2 m/s
B. 4 m/s
C. 6 m/s
D. 8 m/s
Question 15
A light ray 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. 25°
C. 30°
D. 35°

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