POST UTME IGBINEDION UNIVERSITY 2024 Physics | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A 0.50 kg object is attached to a horizontal, massless string of length 1.0 m. The object is displaced by 0.25 m from its equilibrium position and released from rest. Assuming the object undergoes simple harmonic motion, calculate the angular frequency of the motion.
A. 2.0 rad/s
B. 4.0 rad/s
C. 6.0 rad/s
D. 8.0 rad/s
Question 2
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
B. 2
C. 3
D. 4
Question 3
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°
C. 60°
D. 90°
Question 4
A block of ice is placed in a container of boiling water. If the initial temperature of the ice is -10°C and the temperature of the boiling water is 100°C, determine the time it takes for the ice to melt completely.
A. 10 s
B. 20 s
C. 30 s
D. 40 s
Question 5
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°
B. 45°
C. 60°
D. 75°
Question 6
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
B. 1 Hz
C. 2 Hz
D. 5 Hz
Question 7
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
C. 11 m/s
D. 13 m/s
Question 8
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
B. 1 A
C. 2 A
D. 3 A
Question 9
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
B. 1 A
C. 2 A
D. 3 A
Question 10
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
C. 0.60 m/s
D. 0.80 m/s
Question 11
A magnetic field of strength 2 T is applied to a current-carrying wire of length 1 m. If the current in the wire is 5 A, calculate the force exerted on the wire.
A. 10 N
B. 20 N
C. 30 N
D. 40 N
Question 12
A 2.0 kg block is moving in a circular path with a radius of 1.5 m. The block has a speed of 4.0 m/s and is experiencing a centripetal acceleration of 2.0 m/s^2. Calculate the force exerted on the block by the centripetal force.
A. 10.0 N
B. 20.0 N
C. 30.0 N
D. 40.0 N
Question 13
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
B. 1.5 atm
C. 2.0 atm
D. 3.0 atm
Question 14
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?
A. 12.5 Bq
B. 25 Bq
C. 50 Bq
D. 100 Bq
Question 15
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
C. 8 m/s
D. 10 m/s

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