POST UTME LASU 2025 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. 16 m/s^2
B. 32 m/s^2
C. 48 m/s^2
D. 64 m/s^2
Question 2
A wave with a frequency of 50 Hz and a wavelength of 2 m is traveling through a medium. If the wave has a speed of 100 m/s, calculate the amplitude of the wave.
A. 0.02 m
B. 0.04 m
C. 0.06 m
D. 0.08 m
Question 3
A 5 kg block is placed on a horizontal surface with a coefficient of friction of 0.2. If a horizontal force of 10 N is applied to the block, calculate the acceleration of the block.
A. 0.5 m/s^2
B. 1 m/s^2
C. 1.5 m/s^2
D. 2 m/s^2
Question 4
A body of mass 5 kg is moving with a velocity of 10 m/s. If it is subjected to a force of 20 N, what is the acceleration produced?
A. 0.5 m/s²
B. 1 m/s²
C. 2 m/s²
D. 4 m/s²
Question 5
A concave lens has a focal length of -20 cm. What is the nature of the lens?
A. Convex
B. Concave
C. Plane
D. Spherical
Question 6
A 2.5 m long wire of resis\tance 3.5 Ω is connected in series with a 4.2 V battery. If the current flowing through the wire is 0.5 A, what is the power dissipated in the wire?
A. 4.25 W
B. 6.75 W
C. 8.1 W
D. 10.5 W
Question 7
A wave of wavelength 2 m and frequency 5 Hz is traveling through a medium. If the speed of the wave is 10 m/s, what is the amplitude of the wave?
A. 0.5 m
B. 1 m
C. 2 m
D. 5 m
Question 8
A convex lens of focal length 20 cm is used to form an image of an object placed 30 cm from the lens. What is the magnification of the image?
A. 1/2
B. 1/3
C. 2/3
D. 3/4
Question 9
A particle of mass 1 kg is moving in a straight line with an initial velocity of 5 m/s. If the particle is subjected to a cons\tant force of 2 N, what is the velocity of the particle after 10 s?
A. 3 m/s
B. 5 m/s
C. 7 m/s
D. 9 m/s
Question 10
A 2.5 mH inductor is connected in series with a 4.2 kΩ resistor and a 12 V battery. Assuming the inductor has an initial current of 0 A, calculate the time it takes for the current to reach 75% of its maximum value.
A. 0.25 s
B. 0.5 s
C. 0.75 s
D. 1 s
Question 11
A particle of mass 0.5 kg is attached to a spring with a spring cons\tant of 100 N/m. If the particle is displaced by 0.2 m from its equilibrium position and released from rest, calculate the maximum speed of the particle.
A. 0.5 m/s
B. 1 m/s
C. 1.5 m/s
D. 2 m/s
Question 12
A force of 10 N is applied to an object of mass 5 kg, cau\sing it to accelerate at 2 m/s^2. What is the work done on the object?
A. 20 J
B. 40 J
C. 60 J
D. 80 J
Question 13
A 100 W bulb is connected to a 220 V supply. If the current flowing through the bulb is 0.5 A, what is the resis\tance of the bulb?
A. 2 Ω
B. 4 Ω
C. 6 Ω
D. 8 Ω
Question 14
A 10 kg body is moving with a velocity of 5 m/s. If it is subjected to a force of 20 N, what is the acceleration produced?
A. 0.5 m/s²
B. 1 m/s²
C. 2 m/s²
D. 4 m/s²
Question 15
A wave has a frequency of 50 Hz and a wavelength of 10 m. What is the speed of the wave?
A. 250 m/s
B. 500 m/s
C. 750 m/s
D. 1000 m/s

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