POST UTME SKYLINE UNIVERSITY 2023 Physics | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A light ray passes from air into a glass slab 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 2
A force of 10 N is applied to a spring with a force cons\tant of 50 N/m. Calculate the displacement of the spring.
A. 0.2 m
B. 0.4 m
C. 0.6 m
D. 0.8 m
Question 3
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 magnitude of the acceleration of the particle?
A. 6 m/s^2
B. 12 m/s^2
C. 18 m/s^2
D. 24 m/s^2
Question 4
A light source is placed 2 m away from a convex lens of focal length 0.5 m. Calculate the image dis\tance.
A. 1 m
B. 2 m
C. 3 m
D. 4 m
Question 5
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. 2 m/s^2
B. 4 m/s^2
C. 6 m/s^2
D. 8 m/s^2
Question 6
A block of mass 5 kg is attached to a horizontal, massless spring with a force cons\tant of 200 N/m. The block is displaced by 0.2 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. 2 m/s
B. 4 m/s
C. 6 m/s
D. 8 m/s
Question 7
A light ray passes from air into a glass slab of thickness 2.5 cm and re\fractive index 1.5. If the angle of incidence is 30°, calculate the angle of re\fraction.
A. 20°
B. 25°
C. 30°
D. 35°
Question 8
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?
A. 100 N/C
B. 200 N/C
C. 300 N/C
D. 400 N/C
Question 9
A current of 2 A flows through a resistor of 10 Ω. Calculate the power dissipated in the resistor.
A. 20 W
B. 40 W
C. 60 W
D. 80 W
Question 10
A 100 W light bulb is connected to a 220 V power source. If the bulb is used for 5 hours a day, what is the total energy consumed by the bulb in a month?
A. 100 kWh
B. 200 kWh
C. 300 kWh
D. 400 kWh
Question 11
A 10 kg block is susp\ended from a spring with a force cons\tant of 50 N/m. The block is displaced by 0.1 m from its equilibrium position and released from rest. What is the frequency of the resulting oscillations?
A. 0.5 Hz
B. 1.0 Hz
C. 1.5 Hz
D. 2.0 Hz
Question 12
A parallel plate capacitor has a capaci\tance of 5 μF and is charged to a potential difference of 10 V. If a dielectric material with a dielectric cons\tant of 3 is inserted between the plates, what is the new capaci\tance?
A. 15 μF
B. 20 μF
C. 25 μF
D. 30 μF
Question 13
A light source is placed 2 m away from a convex lens of focal length 1 m. If the light source is moved 1 m closer to the lens, what is the new image dis\tance?
A. 1 m
B. 2 m
C. 3 m
D. 4 m
Question 14
A heat engine operates between a high-temperature reservoir at 500°C and a low-temperature reservoir at 100°C. The engine produces 500 J of work per cycle. Calculate the efficiency of the engine.
A. 0.25
B. 0.30
C. 0.35
D. 0.40
Question 15
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 experiences a centripetal acceleration of 2 m/s^2, what is the magnitude of the net force acting on the particle?
A. 8 N
B. 10 N
C. 12 N
D. 16 N

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: