POST UTME VERITAS UNIVERSITY 2021 Physics | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A capacitor consists of two parallel plates, each of area 0.04 m^2, separated by a dis\tance of 0.02 m. If the capaci\tance of the capacitor is 8 x 10^-6 F, what is the charge stored on the capacitor when a potential difference of 12 V is applied across it?
A. 96 C
B. 192 C
C. 288 C
D. 384 C
Question 2
A 10 μF capacitor is connected in parallel with a 20 μF capacitor. Calculate the equivalent capaci\tance of the circuit.
A. 10 μF
B. 20 μF
C. 30 μF
D. 40 μF
Question 3
A parallel plate capacitor has a capaci\tance of 10 μF. If a potential difference of 12 V is applied across the plates, what is the charge stored on each plate?
A. 120 μC
B. 240 μC
C. 360 μC
D. 480 μC
Question 4
A capacitor consists of two parallel plates, each of area 0.1 m^2, separated by a dis\tance of 0.01 m. If the capaci\tance is 10^-6 F, what is the charge stored on the capacitor when a potential difference of 10 V is applied across it?
A. 10^-8 C
B. 10^-7 C
C. 10^-6 C
D. 10^-5 C
Question 5
A 2.0 kg object is moving in a circular path with a radius of 3.0 m at a speed of 4.0 m/s. Calculate the centripetal force acting on the object.
A. 10 N
B. 20 N
C. 30 N
D. 40 N
Question 6
A beam of light is incident on a glass slab at an angle of 30°. If the re\fractive index of the glass is 1.5, calculate the angle of re\fraction.
A. 20°
B. 25°
C. 30°
D. 35°
Question 7
A parallel plate capacitor has a capaci\tance of 20 μF. If a potential difference of 15 V is applied across the plates, what is the energy stored in the capacitor?
A. 300 μJ
B. 600 μJ
C. 900 μJ
D. 1200 μJ
Question 8
A body of mass 5 kg is moving with a velocity of 10 m/s. What is its kinetic energy?
A. 250 J
B. 500 J
C. 750 J
D. 1000 J
Question 9
A wave has a frequency of 20 Hz and a wavelength of 0.5 m. If the wave is traveling in the positive x-direction, what is the direction of the particle velocity at x = 0.25 m?
A. Positive x-direction
B. Negative x-direction
C. Positive y-direction
D. Negative y-direction
Question 10
A projectile is launched from the ground with an initial velocity of 20 m/s at an angle of 30° above the horizontal. If air resis\tance is neglected, what is the maximum height reached by the projectile?
A. 10 m
B. 15 m
C. 20 m
D. 25 m
Question 11
A 100 Ω resistor is connected in series with a 200 Ω resistor and a 50 Ω resistor. If a 10 V potential difference is applied across the circuit, what is the current flowing through the 50 Ω resistor?
A. 0.2 A
B. 0.4 A
C. 0.6 A
D. 0.8 A
Question 12
A beam 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. 25°
C. 30°
D. 35°
Question 13
A radioactive sample has a half-life of 5 days. If the initial activity is 100 Bq, calculate the activity after 10 days.
A. 12.5 Bq
B. 25 Bq
C. 50 Bq
D. 100 Bq
Question 14
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 acceleration of 2 m/s^2, what is the magnitude of the force acting on the particle?
A. 8 N
B. 10 N
C. 12 N
D. 16 N
Question 15
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 force?
A. 10 N
B. 12 N
C. 15 N
D. 20 N

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