POST UTME PAN-ATLANTIC UNIVERSITY 2017 Physics | Objective

Are you preparing for POST UTME PAN-ATLANTIC UNIVERSITY exams? Reviewing past questions is one of the most effective ways to guarantee a high score. This practice hub features authentic 2017 Physics (Objective) questions designed to simulate the real exam environment.

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Question 1
A parallel plate capacitor has a capaci\tance of 10 μF. If a potential difference of 20 V is applied across it, what is the magnitude of the displacement current?
A. 0.02 A
Correct B. 0.04 A
C. 0.06 A
D. 0.08 A

Correct Answer: B

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Question 2
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. What is the magnitude of the centripetal force acting on the particle?
A. 10 N
B. 20 N
Correct C. 30 N
D. 40 N

Correct Answer: C

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Question 3
A 100 W light bulb is connected to a 220 V power source. What is the current drawn by the bulb?
A. 0.4 A
Correct B. 0.5 A
C. 0.6 A
D. 0.7 A

Correct Answer: B

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Question 4
A 5 kg block is moving with a velocity of 2 m/s on a frictionless surface. If a force of 10 N is applied to the block, what is its new velocity?
A. 2.5 m/s
B. 3 m/s
Correct C. 3.5 m/s
D. 4 m/s

Correct Answer: C

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Question 5
A capacitor is connected to a 12 V power source. If the capaci\tance is 2 μF, what is the charge stored on the capacitor?
A. 24 μC
Correct B. 48 μC
C. 72 μC
D. 96 μC

Correct Answer: B

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Question 6
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 acceleration of the particle?
A. 2 m/s^2
B. 4 m/s^2
Correct C. 6 m/s^2
D. 8 m/s^2

Correct Answer: C

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Question 7
A body of mass 5 kg is moving with a velocity of 10 m/s. If it is subjected to a force of 20 N, what is the change in its kinetic energy?
A. 50 J
Correct B. 100 J
C. 150 J
D. 200 J

Correct Answer: B

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Question 8
A radioactive subs\tance has a half-life of 2 years. If 100 g of the subs\tance is initially present, how much of the subs\tance will remain after 6 years?
A. 12.5 g
B. 25 g
Correct C. 37.5 g
D. 50 g

Correct Answer: C

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Question 9
A gas is enclosed in a container of volume 2 m^3 at a pressure of 1 atm. If the temperature is increased by 10°C, what is the new pressure of the gas?
A. 1.1 atm
B. 1.2 atm
Correct C. 1.3 atm
D. 1.4 atm

Correct Answer: C

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Question 10
A wave has a frequency of 50 Hz and a wavelength of 2 m. What is the speed of the wave?
A. 100 m/s
Correct B. 200 m/s
C. 300 m/s
D. 400 m/s

Correct Answer: B

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Question 11
A 2.5 V battery is connected in series with a 5 Ω resistor and a 10 Ω resistor. What is the total resis\tance in the circuit?
A. 10 Ω
Correct B. 12.5 Ω
C. 15 Ω
D. 20 Ω

Correct Answer: B

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Question 12
A particle of mass 0.5 kg is moving in a circular path of radius 2 m with a speed of 4 m/s. What is the magnitude of the centripetal acceleration?
A. 2 m/s^2
B. 4 m/s^2
Correct C. 6 m/s^2
D. 8 m/s^2

Correct Answer: C

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Question 13
A capacitor of capaci\tance 10 μF is connected in parallel with a capacitor of capaci\tance 20 μF. What is the equivalent capaci\tance?
A. 10 μF
B. 15 μF
C. 20 μF
Correct D. 30 μF

Correct Answer: D

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Question 14
A magnetic field of strength 0.5 T is perp\endicular to a current-carrying wire of length 2 m. What is the magnitude of the force on the wire?
A. 0.5 N
Correct B. 1 N
C. 2 N
D. 5 N

Correct Answer: B

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Question 15
A projectile is launched at an angle of 30° above the horizontal with an initial velocity of 20 m/s. What is the maximum height reached by the projectile?
A. 5 m
B. 10 m
Correct C. 15 m
D. 20 m

Correct Answer: C

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Question 16
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 experiences a centripetal acceleration of 2 m/s^2, what is the magnitude of the net force acting on the particle?
A. 8 N
Correct B. 12 N
C. 16 N
D. 20 N

Correct Answer: B

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Question 17
A light ray passes from air into a glass block with a re\fractive index of 1.5. If the angle of incidence is 30°, what is the angle of re\fraction?
A. 20°
Correct B. 25°
C. 30°
D. 35°

Correct Answer: B

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Question 18
A gas is contained in a cylinder of volume 2 L at a pressure of 2 atm. If the temperature is increased by 10 K, what is the new pressure?
A. 2.2 atm
B. 2.5 atm
Correct C. 3.0 atm
D. 3.5 atm

Correct Answer: C

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Question 19
A spring with a spring cons\tant of 100 N/m is stretched by 2 m. What is the work done in stretching the spring?
A. 200 J
Correct B. 400 J
C. 600 J
D. 800 J

Correct Answer: B

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Question 20
A magnetic field of 0.5 T is applied to a current-carrying wire of length 2 m. If the current is 2 A, what is the force experienced by the wire?
A. 0.5 N
Correct B. 1.0 N
C. 1.5 N
D. 2.0 N

Correct Answer: B

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Question 21
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. 8 N
Correct B. 12 N
C. 16 N
D. 24 N

Correct Answer: B

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Question 22
A heat engine operates on a Carnot cycle between two temperatures of 300 K and 400 K. If the engine absorbs 1000 J of heat from the high-temperature reservoir, what is the efficiency of the engine?
A. 0.25
B. 0.33
C. 0.5
Correct D. 0.67

Correct Answer: D

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Question 23
A magnetic field of 0.5 T is applied to a current-carrying wire of length 2 m. If the wire carries a current of 3 A, what is the magnitude of the force experienced by the wire?
A. 0.15 N
B. 0.3 N
Correct C. 0.45 N
D. 0.6 N

Correct Answer: C

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Question 24
A particle of mass 1 kg is moving in a simple harmonic motion with an amplitude of 2 m and a frequency of 3 Hz. If the particle is displaced by 1 m from its equilibrium position, what is the magnitude of the force acting on the particle?
A. 4 N
B. 6 N
Correct C. 8 N
D. 10 N

Correct Answer: C

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Question 25
A quantum particle of mass 1 kg is confined to a one-dimensional box of length 1 m. If the particle is in its ground state, what is the magnitude of the wave function at the center of the box?
A. 0.5
Correct B. 1
C. 1.5
D. 2

Correct Answer: B

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