POST UTME COVENANT UNIVERSITY 2017 Physics | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A block of mass 5 kg is moving with a speed of 2 m/s on a frictionless surface. If a force of 10 N is applied to the block, what is the acceleration of the block?
A. 0.5 m/s^2
B. 1 m/s^2
C. 2 m/s^2
D. 5 m/s^2
Question 2
A parallel plate capacitor has a capaci\tance of 2 μF and is charged to a potential difference of 10 V. If the dis\tance between the plates is doubled, what is the new potential difference?
A. 5 V
B. 10 V
C. 20 V
D. 40 V
Question 3
A capacitor of capaci\tance 2 μF is connected in series with a resistor of resis\tance 10 kΩ. If a potential difference of 12 V is applied across the circuit, what is the current flowing through the circuit?
A. 1.0 × 10^{-3} A
B. 1.2 × 10^{-3} A
C. 1.5 × 10^{-3} A
D. 2.0 × 10^{-3} A
Question 4
A photon of wavelength 600 nm is incident on a metal surface. What is the energy of the photon?
A. 2.00 eV
B. 3.00 eV
C. 4.00 eV
D. 5.00 eV
Question 5
A light source is placed 2 m away from a convex lens with a focal length of 0.5 m. If the light source is moved 0.1 m closer to the lens, what is the new image dis\tance?
A. 1.5 m
B. 1.8 m
C. 2.0 m
D. 2.2 m
Question 6
A block of mass 5 kg is attached to a horizontal, massless spring with a force cons\tant of 200 N/m. The block is displaced by 2 m from its equilibrium position and released from rest. What is the maximum speed of the block?
A. 2 m/s
B. 4 m/s
C. 6 m/s
D. 8 m/s
Question 7
A circuit consists of a 10 Ω resistor connected in series with a 20 Ω resistor and a 30 Ω resistor. If a potential difference of 12 V is applied across the circuit, what is the current flowing through the 10 Ω resistor?
A. 0.1 A
B. 0.2 A
C. 0.3 A
D. 0.4 A
Question 8
A particle of mass 2.0 kg is moving in a circular path of radius 3.0 m with a speed of 4.0 m/s. What is the magnitude of the centripetal force acting on the particle?
A. 10 N
B. 20 N
C. 30 N
D. 40 N
Question 9
A 100 Ω resistor is connected in series with a 200 Ω resistor and a 300 Ω resistor. What is the equivalent resis\tance?
A. 100 Ω
B. 200 Ω
C. 300 Ω
D. 600 Ω
Question 10
A light ray passes from air into a glass slab with a re\fractive index of 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 convex lens of focal length 20 cm is placed in contact with a concave lens of focal length -15 cm. What is the focal length of the combination?
A. 10 cm
B. 15 cm
C. 20 cm
D. 25 cm
Question 12
A parallel plate capacitor has a capaci\tance of 10 μF and is charged to a potential difference of 5.0 V. What is the energy stored in the capacitor?
A. 0.25 J
B. 0.50 J
C. 0.75 J
D. 1.00 J
Question 13
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. 1.5 A
B. 2 A
C. 2.5 A
D. 3 A
Question 14
A sound wave has a frequency of 200 Hz and a wavelength of 0.5 m. What is the speed of the sound wave?
A. 100 m/s
B. 200 m/s
C. 300 m/s
D. 400 m/s
Question 15
A 10 kg block is placed on a horizontal surface with a coefficient of friction of 0.5. If a horizontal force of 20 N is applied to the block, what is the acceleration of the block?
A. 0.5 m/s²
B. 1.0 m/s²
C. 1.5 m/s²
D. 2.0 m/s²

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