POST UTME COAL CITY UNIVERSITY 2022 Physics | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A ray of light passes through a prism and is re\fracted. If the angle of incidence is 30° and the angle of re\fraction is 20°, determine the angle of deviation.
A. 10°
B. 20°
C. 30°
D. 40°
Question 2
A 5 kg block is moving with a speed of 10 m/s on a horizontal surface. If a horizontal force of 20 N is applied to the block, what is its acceleration?
A. 0.5 m/s^2
B. 1.0 m/s^2
C. 1.5 m/s^2
D. 2.0 m/s^2
Question 3
A particle of mass 2 kg is moving in a circular path of radius 3 m with a speed of 4 m/s. If the particle is subject to a centripetal force of 10 N, what is the acceleration of the particle?
A. 2 m/s²
B. 4 m/s²
C. 6 m/s²
D. 8 m/s²
Question 4
A spring is stretched by a force of 10 N. If the spring cons\tant is 2 N/m, determine the displacement.
A. 2 m
B. 4 m
C. 6 m
D. 8 m
Question 5
A ray of light passes through a convex lens and is focused. If the focal length is 0.1 m and the object dis\tance is 0.2 m, determine the image dis\tance.
Question 6
A fluid is flowing through a horizontal pipe with a cross-sectional area of 0.01 m^2. If the pressure difference between the two \ends of the pipe is 1000 Pa, determine the flow rate.
A. 0.01 m^3/s
B. 0.02 m^3/s
C. 0.03 m^3/s
D. 0.04 m^3/s
Question 7
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. 10 m/s^2
B. 12 m/s^2
C. 15 m/s^2
D. 20 m/s^2
Question 8
A circuit consists of a 12 V battery, a 4 Ω resistor, and a 6 Ω resistor connected in series. What is the current flowing through the circuit?
A. 1 A
B. 2 A
C. 3 A
D. 4 A
Question 9
A vector \overrightarrow{A} has a magnitude of 5 units and makes an angle of 30° with the positive x-axis. What is the x-component of the vector?
A. 2.5
B. 3.5
C. 4.5
D. 5.5
Question 10
A beam of light 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. 40°
C. 60°
D. 80°
Question 11
A gas is contained in a cylinder of volume 2 L at a temperature of 300 K. The gas expands to a volume of 4 L at a temperature of 400 K. What is the ratio of the final pressure to the initial pressure?
A. 0.5
B. 1
C. 2
D. 4
Question 12
A ray of light passes from air into a glass 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 13
A 2 kg block is susp\ended from a spring balance. If the balance reads 20 N, what is the tension in the string?
A. 10 N
B. 15 N
C. 20 N
D. 25 N
Question 14
A 5 kg block is susp\ended from a spring with a spring cons\tant of 200 N/m. If the block is displaced by 2 m from its equilibrium position, what is the potential energy stored in the spring?
A. 100 J
B. 200 J
C. 300 J
D. 400 J
Question 15
A magnetic field is produced by a current-carrying coil. If the current is 2 A and the number of turns is 50, determine the magnetic field strength.
A. 0.1 T
B. 0.2 T
C. 0.3 T
D. 0.4 T

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