POST UTME KSU 2021 Physics | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A projectile is launched at an angle of 60° to the horizontal with an initial velocity of 20 m/s. If the acceleration due to gravity is 9.8 m/s^2, find the maximum height reached by the projectile.
A. 10 m
B. 15 m
C. 20 m
D. 25 m
Question 2
A magnetic field of 0.5 T is applied to a coil of 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 3
A body of mass 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 body?
A. 10 N
B. 20 N
C. 30 N
D. 40 N
Question 4
A point charge of +2 μC is placed at the origin. What is the electric potential at a point 0.5 m away from the charge?
A. 18 kV
B. 18 mV
C. 18 μV
D. 18 V
Question 5
A light ray passes from air into a glass slab of thickness 5 cm and re\fractive index 1.5. If the angle of incidence is 30°, calculate the angle of re\fraction.
A. 20°
B. 25°
C. 30°
D. 35°
Question 6
A radioactive sample has a half-life of 5 years. If the initial activity is 100 Bq, find the activity after 10 years.
A. 12.5 Bq
B. 25 Bq
C. 50 Bq
D. 100 Bq
Question 7
A particle of mass 2 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. 2 m/s
B. 4 m/s
C. 6 m/s
D. 8 m/s
Question 8
A sound wave with a frequency of 200 Hz is traveling through a medium with a speed of 340 m/s. If the wavelength of the sound wave is 1.7 m, what is the amplitude of the sound wave?
A. 0.05 m
B. 0.1 m
C. 0.15 m
D. 0.2 m
Question 9
A 10 Ω resistor is connected in series with a 20 Ω resistor and a 30 Ω resistor. If a 12 V battery is connected across the circuit, what is the total resis\tance of the circuit?
A. 60 Ω
B. 80 Ω
C. 100 Ω
D. 120 Ω
Question 10
A light ray passes from air into a glass slab of re\fractive index 1.5. If the angle of incidence is 30°, what is the angle of re\fraction?
A. 20°
B. 30°
C. 40°
D. 50°
Question 11
A capacitor of 100 μF is connected in series with a resistor of 10 kΩ. If a 12 V battery is connected across the circuit, what is the time cons\tant of the circuit?
A. 0.1 s
B. 0.5 s
C. 1 s
D. 2 s
Question 12
A nucleus of mass number 20 has a binding energy of 150 MeV. If the nucleus is split into two fragments of mass numbers 10 and 10, what is the energy released in the process?
A. 50 MeV
B. 75 MeV
C. 100 MeV
D. 125 MeV
Question 13
A 2.5 m long wire of resis\tance 5 Ω is connected in series with a 10 V battery. If the wire is stretched to 3.5 m, what is the new resis\tance?
A. 7.5 Ω
B. 10 Ω
C. 12.5 Ω
D. 15 Ω
Question 14
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 acceleration due to gravity is 9.8 m/s², what is the maximum height reached by the projectile?
A. 10 m
B. 15 m
C. 20 m
D. 25 m
Question 15
A magnetic field is produced by a current-carrying wire. If the current is 5 A and the length of the wire is 2 m, what is the magnetic field strength at a dis\tance of 0.5 m from the wire?
A. 1.0 x 10^-4 T
B. 2.0 x 10^-4 T
C. 3.0 x 10^-4 T
D. 4.0 x 10^-4 T

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: