POST UTME IGBINEDION UNIVERSITY 2024 Physics | Objective

Practice these randomly selected questions to test your readiness.

Question 1
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
C. 5 m/s²
D. 10 m/s²
Question 2
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
B. 5.0 s
C. 7.5 s
D. 10.0 s
Question 3
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 4
A quantum particle is confined to a one-dimensional box of length 1 m. If the particle has an energy of 10 eV, calculate the momentum of the particle.
A. 1.5 × 10^\( -24 \) kg m/s
B. 2.5 × 10^\( -24 \) kg m/s
C. 3.5 × 10^\( -24 \) kg m/s
D. 4.5 × 10^\( -24 \) kg m/s
Question 5
A magnetic field of 0.5 T is directed along the positive z-axis. If a current of 2 A is flowing in a wire loop placed in the magnetic field, determine the torque experienced by the loop.
A. 0.1 Nm
B. 0.2 Nm
C. 0.3 Nm
D. 0.4 Nm
Question 6
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 7
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°
C. 60°
D. 90°
Question 8
A vector \vec{A} has a magnitude of 5 units and makes an angle of 30° with the positive x-axis. If a second vector \vec{B} has a magnitude of 3 units and makes an angle of 60° with the positive x-axis, determine the magnitude of the resul\tant vector \vec{A} + \vec{B}.
A. 4 units
B. 5 units
C. 6 units
D. 7 units
Question 9
A circuit consists of a 12 V battery, a 4 Ω resistor, and an inductor of induc\tance 0.5 H. If the circuit is connected at t = 0, calculate the current in the circuit at t = 1 s.
A. 2 A
B. 3 A
C. 4 A
D. 5 A
Question 10
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 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 sound wave with a frequency of 200 Hz is emitted from a source moving towards a stationary observer. If the speed of sound in air is 343 m/s, calculate the apparent frequency heard by the observer.
A. 220 Hz
B. 240 Hz
C. 260 Hz
D. 280 Hz
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
B. 1 A
C. 2 A
D. 4 A
Question 14
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
B. 0.40 A m^2
C. 0.60 A m^2
D. 0.80 A m^2
Question 15
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
C. 300 J
D. 400 J

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