POST UTME IGBINEDION UNIVERSITY 2024 Physics | Objective

Are you preparing for POST UTME IGBINEDION UNIVERSITY exams? Reviewing past questions is one of the most effective ways to guarantee a high score. This practice hub features authentic 2024 Physics (Objective) questions designed to simulate the real exam environment.

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Question 1
A radioactive sample of uranium-238 undergoes \alpha decay. If the initial mass of the sample is 100 g, and the mass of the \alpha particle emitted is 4 u, what is the mass of the daughter nucleus after the decay?
Correct A. 234 u
B. 238 u
C. 242 u
D. 246 u

Correct Answer: A

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Question 2
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 6 Ω resistor?
A. 0.5 A
Correct B. 1 A
C. 2 A
D. 3 A

Correct Answer: B

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Question 3
A particle of mass 2 kg is moving in a circular path with a radius of 3 m. If the particle is moving with a speed of 4 m/s, what is 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 4
A projectile is launched from the ground with an initial velocity of 20 m/s at an angle of 30° above the horizontal. What is the maximum height reached by the projectile?
A. 10 m
B. 15 m
Correct C. 20 m
D. 25 m

Correct Answer: C

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Question 5
A 100 W light bulb is connected to a 220 V power source. What is the current flowing through the light bulb?
A. 0.5 A
Correct B. 1 A
C. 2 A
D. 3 A

Correct Answer: B

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Question 6
A radioactive sample emits \alpha particles with a half-life of 5 days. If the initial activity is 100 Bq, what is the activity after 15 days?
Correct A. 12.5 Bq
B. 25 Bq
C. 50 Bq
D. 100 Bq

Correct Answer: A

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Question 7
A convex lens of focal length 20 cm is used to form an image of an object placed 30 cm away. What is the magnification of the image?
A. 1
Correct B. 2
C. 3
D. 4

Correct Answer: B

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Question 8
A particle of mass 2 kg is attached to a spring with a spring cons\tant of 10 N/m. If the particle is displaced by 0.5 m from its equilibrium position and released, what is the frequency of oscillation?
A. 0.5 Hz
Correct B. 1 Hz
C. 2 Hz
D. 5 Hz

Correct Answer: B

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Question 9
A gas is heated from 300 K to 400 K at cons\tant volume. What is the change in internal energy?
A. 100 J
B. 200 J
Correct C. 300 J
D. 400 J

Correct Answer: C

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Question 10
A light ray 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?
Correct A. 20°
B. 30°
C. 40°
D. 50°

Correct Answer: A

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Question 11
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 angle between the force and the radius vector?
A. 30°
B. 45°
Correct C. 60°
D. 90°

Correct Answer: C

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Question 12
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. Assuming the motion is simple harmonic, what is the maximum speed of the block?
A. 4 m/s
B. 6 m/s
Correct C. 8 m/s
D. 10 m/s

Correct Answer: C

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Question 13
A 100 W light bulb is connected to a 220 V power source. If the resis\tance of the bulb is 240 Ω, what is the current flowing through the bulb?
A. 0.5 A
Correct B. 1 A
C. 2 A
D. 4 A

Correct Answer: B

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Question 14
A particle of mass 1 kg is moving in a straight line with an initial velocity of 5 m/s. If the particle experiences a cons\tant acceleration of 2 m/s², what is its velocity after 3 s?
A. 7 m/s
B. 9 m/s
Correct C. 11 m/s
D. 13 m/s

Correct Answer: C

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Question 15
A block of mass 3 kg is moving in a circular path of radius 4 m with a cons\tant speed of 6 m/s. If the block is subjected to a centripetal force of 18 N, what is the angle between the force and the radius vector?
A. 30°
B. 45°
Correct C. 60°
D. 90°

Correct Answer: C

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Question 16
A particle of mass 2 kg is projected from the origin with an initial velocity of 20 m/s at an angle of 60° to the horizontal. Assuming the acceleration due to gravity is 9.8 m/s², calculate the time of flight.
A. 2.5 s
Correct B. 5.0 s
C. 7.5 s
D. 10.0 s

Correct Answer: B

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Question 17
A block of mass 5 kg is placed on a frictionless surface and a horizontal force of 10 N is applied to it. If the block starts from rest, calculate its acceleration.
A. 1 m/s²
B. 2 m/s²
Correct C. 5 m/s²
D. 10 m/s²

Correct Answer: C

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Question 18
A parallel plate capacitor has a capaci\tance of 10 µF and is charged to a potential difference of 100 V. If the dis\tance between the plates is doubled, calculate the new capaci\tance.
A. 5 µF
B. 10 µF
Correct C. 20 µF
D. 50 µF

Correct Answer: C

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Question 19
A gas is heated from 300 K to 400 K at cons\tant volume. If the initial pressure is 1 atm, calculate the final pressure.
A. 1.33 atm
Correct B. 1.5 atm
C. 2.0 atm
D. 3.0 atm

Correct Answer: B

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Question 20
A beam of light is incident on a prism at an angle of 60°. If the re\fractive index of the prism is 1.5, calculate the angle of re\fraction.
A. 30°
Correct B. 45°
C. 60°
D. 75°

Correct Answer: B

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Question 21
A uniform magnetic field of strength 2.0 T is directed along the z-axis. A current of 5.0 A flows in a circular loop of radius 0.20 m, placed in the x-y plane. What is the magnitude of the magnetic moment of the loop?
A. 0.20 A m^2
Correct B. 0.40 A m^2
C. 0.60 A m^2
D. 0.80 A m^2

Correct Answer: B

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Question 22
A block of mass 2.0 kg is attached to a spring with a force cons\tant of 100 N/m. The block is displaced by 0.20 m from its equilibrium position and released from rest. What is the maximum speed of the block?
A. 0.20 m/s
B. 0.40 m/s
Correct C. 0.60 m/s
D. 0.80 m/s

Correct Answer: C

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Question 23
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
Correct B. 0.50 J
C. 0.75 J
D. 1.00 J

Correct Answer: B

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Question 24
A current of 2.0 A flows through a resistor of 10 Ω. What is the power dissipated by the resistor?
A. 0.20 W
B. 0.40 W
Correct C. 0.60 W
D. 0.80 W

Correct Answer: C

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Question 25
A p\endulum of length 1.0 m is released from rest at an angle of 30° from the vertical. What is the speed of the p\endulum at the bottom of its swing?
A. 0.20 m/s
B. 0.40 m/s
Correct C. 0.60 m/s
D. 0.80 m/s

Correct Answer: C

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