POST UTME UNILORIN 2024 Physics | Objective

Practice these randomly selected questions to test your readiness.

Question 1
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. 8 m/s^2
C. 10 m/s^2
D. 12 m/s^2
Question 2
A block of mass 2 kg is placed on a frictionless surface and connected to a spring with spring cons\tant 100 N/m. The block is displaced by 0.2 m from its equilibrium position and released from rest. 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 5.0 kg block is attached to a horizontal, massless spring with a force cons\tant of 200 N/m. The block is displaced by 0.20 m from its equilibrium position and then released from rest. What is the maximum speed of the block?
A. 1.0 m/s
B. 2.0 m/s
C. 4.0 m/s
D. 8.0 m/s
Question 4
A parallel plate capacitor has a capaci\tance of 10 μF and is charged to a potential difference of 12 V. If the dis\tance between the plates is doubled, what is the new capaci\tance?
A. 2.0 μF
B. 4.0 μF
C. 5.0 μF
D. 10 μF
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 subjected 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 circuit consists of a 12 V battery, a 4 Ω resistor, and an inductor of induc\tance 2 H. The circuit is connected to a switch that is initially open. At $t = 0$, the switch is closed. What is the current in the circuit at $t = 5$ s?
A. 0 A
B. 1 A
C. 2 A
D. 3 A
Question 7
A circuit consists of a 12 V battery, a 4 Ω resistor, and a 10 μF capacitor. The circuit is connected to a switch that is initially open. At $t = 0$, the switch is closed. What is the current in the circuit at $t = 5$ s?
A. 0 A
B. 1 A
C. 2 A
D. 3 A
Question 8
A sound wave with frequency 200 Hz and amplitude 0.5 mm is traveling through a medium with speed 340 m/s. Calculate the wavelength of the sound wave.
A. 1.7 m
B. 1.8 m
C. 1.9 m
D. 2.0 m
Question 9
A ray 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 10
A particle of mass 1 kg is moving in a circular path of radius 2 m with a cons\tant speed of 3 m/s. If the particle is subjected to a centripetal force of 9 N, what is the magnitude of the acceleration of the particle?
A. 1 m/s^2
B. 2 m/s^2
C. 3 m/s^2
D. 4 m/s^2
Question 11
A parallel plate capacitor has plates of area 0.04 m^2 and separation 0.02 m. If the dielectric cons\tant of the material between the plates is 3.0, calculate the capaci\tance.
A. 1.0 x 10^-9 F
B. 2.0 x 10^-9 F
C. 3.0 x 10^-9 F
D. 4.0 x 10^-9 F
Question 12
A gas is heated from 300 K to 400 K at cons\tant volume. If the initial volume is 2.0 L and the gas cons\tant is 8.314 J/mol·K, what is the change in internal energy of 2.0 mol of the gas?
A. 24.0 kJ
B. 48.0 kJ
C. 96.0 kJ
D. 192.0 kJ
Question 13
A sound wave has a frequency of 200 Hz and wavelength of 0.5 m. Calculate the speed of the wave.
A. 100 m/s
B. 200 m/s
C. 300 m/s
D. 400 m/s
Question 14
A parallel plate capacitor has a capaci\tance of 10 μF and is charged to a potential difference of 12 V. The plates are then disconnected and the dis\tance between them is doubled. What is the new capaci\tance?
A. 5 μF
B. 10 μF
C. 20 μF
D. 40 μF
Question 15
A magnetic field of 0.5 T is applied to a coil of 100 turns and area 0.01 m^2. If the resis\tance of the coil is 10 ohms, calculate the induced emf.
A. 0.1 V
B. 0.2 V
C. 0.5 V
D. 1.0 V

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: