POST UTME NILE UNIVERSITY 2025 Physics | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A parallel plate capacitor has plates of area 0.04 m^2 and separation 0.02 m. If the capaci\tance is 2.5 x 10^-10 F, what is the charge on the plates?
A. 1.25 x 10^-9 C
B. 2.5 x 10^-9 C
C. 5.0 x 10^-9 C
D. 7.5 x 10^-9 C
Question 2
A gas at 300 K expands from 0.1 m^3 to 0.5 m^3 against a cons\tant external pressure of 2.0 x 10^5 Pa. What is the work done by the gas?
A. 1.0 x 10^4 J
B. 2.0 x 10^4 J
C. 3.0 x 10^4 J
D. 4.0 x 10^4 J
Question 3
A 50 Hz, 200 V AC supply is connected to a series RLC circuit with R = 100 Ω, L = 0.2 H, and C = 10 μF. Calculate the impedance of the circuit.
A. 150 Ω
B. 200 Ω
C. 250 Ω
D. 300 Ω
Question 4
A circuit consists of a 10 Ω resistor and a 20 μF capacitor in series. The circuit is connected to a 50 Hz AC supply. Calculate the reac\tance of the capacitor.
A. 318 Ω
B. 318.3 Ω
C. 318.32 Ω
D. 318.32 Ω
Question 5
A wave of frequency 100 Hz and wavelength 0.5 m is traveling through a medium with speed 300 m/s. What is the amplitude of the wave?
A. 0.01 m
B. 0.02 m
C. 0.03 m
D. 0.04 m
Question 6
A wave of frequency 100 Hz and wavelength 2 m is traveling through a medium. Calculate the speed of the wave.
A. 200 m/s
B. 300 m/s
C. 400 m/s
D. 500 m/s
Question 7
A 100 V AC source is connected to a 50 Ω resistor. If the current is 2.0 A, what is the power consumed by the resistor?
A. 200 W
B. 400 W
C. 600 W
D. 800 W
Question 8
A photon of wavelength 500 nm is incident on a metal surface. If the work function of the metal is 2.5 eV, what is the maximum kinetic energy of the emitted electron?
A. 1.0 eV
B. 2.0 eV
C. 3.0 eV
D. 4.0 eV
Question 9
A particle of mass 1.0 kg is moving in a circular path of radius 2.0 m with a cons\tant speed of 3.0 m/s. If the particle is subjected to a uniform magnetic field of strength 0.5 T, what is the magnitude of the magnetic force acting on the particle?
A. 0.5 N
B. 1.0 N
C. 1.5 N
D. 2.0 N
Question 10
A gas at 300 K and 1 atm is compressed to 2 atm. Calculate the final temperature of the gas.
A. 400 K
B. 500 K
C. 600 K
D. 700 K
Question 11
A particle of mass 2.0 kg is moving in a circular path of radius 3.0 m with a cons\tant speed of 4.0 m/s. What is the magnitude of the net force acting on the particle?
A. 6.0 N
B. 12.0 N
C. 24.0 N
D. 48.0 N
Question 12
A parallel plate capacitor has plates of area 0.04 m^2 and separation 0.02 m. If the capaci\tance is 8.0 x 10^-10 F, what is the charge stored when the potential difference between the plates is 100 V?
A. 4.0 x 10^-8 C
B. 8.0 x 10^-8 C
C. 1.6 x 10^-7 C
D. 3.2 x 10^-7 C
Question 13
A particle of mass 2 kg is attached to a spring with a spring cons\tant of 100 N/m. It is displaced by 0.2 m from its equilibrium position and released from rest. Calculate the angular frequency of the simple harmonic motion.
A. 5 rad/s
B. 10 rad/s
C. 15 rad/s
D. 20 rad/s
Question 14
A simple p\endulum of length 1.0 m is released from rest at an angle of 30 degrees from the vertical. What is the time period of the p\endulum?
A. 1.0 s
B. 2.0 s
C. 3.0 s
D. 4.0 s
Question 15
A particle of mass 0.5 kg is attached to a spring with spring cons\tant 100 N/m. If the particle is displaced by 0.2 m from its equilibrium position and released from rest, what is its angular frequency?
A. 1.0 rad/s
B. 2.0 rad/s
C. 5.0 rad/s
D. 10.0 rad/s

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: