POST UTME UNIOSUN 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 acceleration of 2 m/s^2, what is the force exerted on the particle?
A. 10 N
B. 12 N
C. 8 N
D. 6 N
Question 2
A light ray passes through a prism of angle 60°. If the angle of incidence is 30°, what is the angle of deviation?
A. 30°
B. 40°
C. 50°
D. 60°
Question 3
A simple harmonic motion has a maximum displacement of 5 cm and a period of 2 s. What is the angular frequency?
A. 1 rad/s
B. 2 rad/s
C. 3 rad/s
D. 4 rad/s
Question 4
A 2 kg object is moving in a circular path with a radius of 3 m. If the object has a speed of 4 m/s, what is the centripetal acceleration?
A. 0.5 m/s^2
B. 1 m/s^2
C. 2 m/s^2
D. 4 m/s^2
Question 5
A 10 μF capacitor is connected in series with a 5 kΩ resistor. If a 12 V battery is connected across the circuit, what is the time cons\tant of the circuit?
A. 0.1 s
B. 0.2 s
C. 0.5 s
D. 1 s
Question 6
A heat engine operates between two temperatures of 300 K and 400 K. If it has an efficiency of 30%, what is the temperature of the hot reservoir?
A. 350 K
B. 400 K
C. 450 K
D. 500 K
Question 7
A lens of focal length 20 cm forms an image of an object at a dis\tance of 30 cm. What is the magnification of the lens?
A. ( 1 )
B. ( 2 )
C. ( 3 )
D. ( 4 )
Question 8
A circuit consists of a 10 Ω resistor, a 20 Ω resistor, and a 5 Ω resistor connected in series. If a voltage of 12 V is applied across the circuit, what is the current flowing through the 5 Ω resistor?
A. \( 2 , \text{A} \)
B. \( 3 , \text{A} \)
C. \( 4 , \text{A} \)
D. \( 5 , \text{A} \)
Question 9
A wave has a frequency of 50 Hz and a wavelength of 0.2 m. What is the speed of the wave?
A. 10 m/s
B. 20 m/s
C. 25 m/s
D. 30 m/s
Question 10
A circuit consists of a 10 Ω resistor, a 20 Ω resistor, and a 5 V battery. If the circuit is closed, determine the current flowing through the 10 Ω resistor.
A. 0.5 A
B. 1 A
C. 2 A
D. 5 A
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 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 12
A wave of frequency 100 Hz and wavelength 0.1 m is traveling through a medium. If the wave is reflected from a fixed \end, what is the frequency of the reflected wave?
A. 100 Hz
B. 200 Hz
C. 300 Hz
D. 400 Hz
Question 13
A 12 V battery is connected to a 4 Ω resistor. What is the current flowing through the resistor?
A. 2 A
B. 3 A
C. 4 A
D. 6 A
Question 14
A rigid rod of length 1 m is pivoted at one \end and is free to rotate in a vertical plane. If a force of 10 N is applied at the other \end of the rod, what is the magnitude of the torque applied to the rod?
A. 5 Nm
B. 10 Nm
C. 15 Nm
D. 20 Nm
Question 15
A projectile is launched from the ground with an initial velocity of 20 m/s at an angle of 60° 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

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