POST UTME NOUN 2024 Physics | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A circuit consists of a 10 Ω resistor, a 20 μF capacitor, and a 100 mH inductor in series. If the circuit is driven by a 10 V AC source with a frequency of 50 Hz, what is the impedance of the circuit?
A. 10 Ω
B. 20 Ω
C. 30 Ω
D. 40 Ω
Question 2
A wave has a frequency of 100 Hz and a wavelength of 0.1 m. What is the speed of the wave?
A. 10 m/s
B. 20 m/s
C. 30 m/s
D. 40 m/s
Question 3
A gas is contained in a cylinder of volume 2 m^3 at a pressure of 1 atm. If the temperature of the gas is increased by 10°C, what is the new pressure of the gas?
A. 1.2 atm
B. 1.5 atm
C. 2.0 atm
D. 2.5 atm
Question 4
A lens with a focal length of 20 cm is used to form an image of an object 30 cm away. What is the magnification of the image?
A. -1
B. -2
C. -3
D. -4
Question 5
A 10 μF capacitor is connected in series with a 5 kΩ resistor and a 20 V battery. What is the time cons\tant of the circuit?
A. 0.1 s
B. 0.5 s
C. 1 s
D. 2 s
Question 6
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 net force acting on the particle?
A. 12 N
B. 16 N
C. 20 N
D. 24 N
Question 7
A 100 Ω resistor is connected in series with a 50 Ω resistor and a 200 Ω resistor. What is the total resis\tance of the circuit?
A. 300 Ω
B. 350 Ω
C. 400 Ω
D. 450 Ω
Question 8
A projectile is launched from the ground with an initial velocity of 20 m/s at an angle of 30° above the horizontal. If the air resis\tance is negligible, what is the maximum height reached by the projectile?
A. 10 m
B. 15 m
C. 20 m
D. 25 m
Question 9
A magnetic field of 2 T is applied to a coil of wire with 100 turns. If the current in the coil is 5 A, what is the magnitude of the magnetic moment?
A. 10 A·m^2
B. 20 A·m^2
C. 30 A·m^2
D. 40 A·m^2
Question 10
A uniform magnetic field of 2 T is applied to a coil of wire with 100 turns. The coil has a radius of 0.05 m and a resis\tance of 5 Ω. If the current in the coil is 2 A, what is the induced emf?
A. 0.1 V
B. 0.2 V
C. 0.5 V
D. 1 V
Question 11
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 force acting on the particle?
A. 8 N
B. 10 N
C. 12 N
D. 16 N
Question 12
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 13
A light ray passes through a prism with an angle of incidence of 30° and an angle of re\fraction of 20°. If the angle of the prism is 60°, what is the angle of emergence?
A. 40°
B. 50°
C. 60°
D. 70°
Question 14
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. 4 m/s^2
B. 6 m/s^2
C. 8 m/s^2
D. 10 m/s^2
Question 15
A block of mass 2 kg is attached to a horizontal spring with a spring cons\tant of 100 N/m. The block is displaced by 0.2 m from its equilibrium position and released from rest. Calculate the time period of the resulting simple harmonic motion.
A. 0.5 s
B. 1.0 s
C. 1.5 s
D. 2.0 s

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