POST UTME EKSU 2024 Physics | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A magnetic field of 0.5 T is applied to a coil of wire with 100 turns. If the coil is rotated by 90°, what is the induced emf?
A. 0.5 V
B. 1 V
C. 2 V
D. 5 V
Question 2
A 2.0 kg block is attached to a horizontal, massless spring with a force cons\tant of 100 N/m. The block is displaced by 0.20 m from its equilibrium position and released from rest. What is the speed of the block when it passes through the equilibrium position?
A. 0.50 m/s
B. 1.0 m/s
C. 1.5 m/s
D. 2.0 m/s
Question 3
A particle of mass 0.5 kg is moving in a circular path of radius 2 m with a cons\tant speed of 4 m/s. What is the magnitude of the force acting on the particle?
A. 10 N
B. 12 N
C. 15 N
D. 20 N
Question 4
A 50 Hz AC voltage is applied across a 100 Ω resistor. What is the rms value of the current?
A. 0.5 A
B. 1 A
C. 1.5 A
D. 2 A
Question 5
A circuit consists of a 12 V battery, a 4 Ω resistor, and a 6 Ω resistor connected in series. What is the current in the circuit?
A. 1.5 A
B. 2.0 A
C. 2.5 A
D. 3.0 A
Question 6
A radioactive sample of Uranium-238 undergoes \alpha decay, emitting an \alpha particle. If the mass number of the parent nucleus is 238 and the atomic number is 92, what is the mass number of the daughter nucleus?
A. 234
B. 236
C. 238
D. 240
Question 7
A wave has a frequency of 50 Hz and a wavelength of 0.2 m. Calculate the speed of the wave.
A. 10 m/s
B. 20 m/s
C. 30 m/s
D. 40 m/s
Question 8
A ray of light passes from air into a glass slab of re\fractive index 1.5. If the angle of incidence is 30°, calculate the angle of re\fraction.
A. 20°
B. 30°
C. 40°
D. 50°
Question 9
A 1000 kg car is traveling at a speed of 50 m/s. If the car is brought to rest in 10 s, what is the average force applied to the car?
A. 500 N
B. 1000 N
C. 1500 N
D. 2000 N
Question 10
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. -0.5
B. -1
C. -2
D. -3
Question 11
A 2.5 m long wire of resis\tance 3.5 Ω is connected in series with a 10 V battery. If the wire is stretched to 3.2 m, what is the new resis\tance?
A. 2.1 Ω
B. 2.5 Ω
C. 3.1 Ω
D. 3.5 Ω
Question 12
A sound wave has a frequency of 200 Hz and a speed of 340 m/s. Calculate the wavelength of the wave.
A. 1.7 m
B. 1.8 m
C. 1.9 m
D. 2.0 m
Question 13
A sound wave with a frequency of 200 Hz is emitted from a source and travels through a medium with a speed of 340 m/s. If the wave is reflected off a stationary surface, what is the frequency of the reflected wave?
A. 200 Hz
B. 400 Hz
C. 140 Hz
D. 280 Hz
Question 14
A block of mass 2 kg is placed on a horizontal, frictionless surface. A horizontal force of 10 N is applied to the block. What is the acceleration of the block?
A. 2 m/s^2
B. 4 m/s^2
C. 5 m/s^2
D. 10 m/s^2
Question 15
A wave of frequency 50 Hz and amplitude 2 m is traveling through a medium with a speed of 150 m/s. If the wave is reflected from a fixed \end, what is the maximum acceleration of the wave?
A. 100 m/s^2
B. 150 m/s^2
C. 200 m/s^2
D. 250 m/s^2

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