POST UTME LAUTECH 2024 Physics | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A gas occupies a volume of 2 L at a pressure of 1 atm and a temperature of 300 K. If the pressure is increased to 2 atm and the temperature is decreased to 200 K, calculate the new volume of the gas.
A. 1 L
B. 2 L
C. 3 L
D. 4 L
Question 2
A particle of mass 3 kg is moving in a circular path with a cons\tant speed of 5 m/s. If the radius of the path is 4 m, calculate the magnitude of the centripetal acceleration.
A. 12 m/s^2
B. 15 m/s^2
C. 18 m/s^2
D. 20 m/s^2
Question 3
A 10 Ω resistor is connected in series with a 20 Ω resistor and a 30 Ω resistor. If a 12 V battery is connected across the circuit, calculate the current flowing through the 10 Ω resistor.
A. 0.4 A
B. 0.6 A
C. 0.8 A
D. 1 A
Question 4
A circuit consists of a 12 V battery, a 4 Ω resistor, and a 6 Ω resistor connected in series. If the current in the circuit is 1 A, calculate the total power consumed by the circuit.
A. 24 W
B. 36 W
C. 48 W
D. 60 W
Question 5
A gas is heated from 300 K to 400 K at cons\tant volume. If the initial pressure is 2 atm, calculate the final pressure.
A. 3 atm
B. 4 atm
C. 5 atm
D. 6 atm
Question 6
A beam of light is incident on a glass slab at an angle of 60°. If the re\fractive index of glass is 1.5, calculate the angle of re\fraction.
A. 30°
B. 45°
C. 60°
D. 75°
Question 7
A block of mass 5 kg is attached to a horizontal spring with a force cons\tant of 200 N/m. If the block is displaced by 2 m from its equilibrium position and released from rest, calculate the maximum speed of the block.
A. 2 m/s
B. 4 m/s
C. 6 m/s
D. 8 m/s
Question 8
A particle is moving in a circular path with a cons\tant speed of 4 m/s. If the radius of the circle is 2 m, calculate the centripetal acceleration.
A. 2 m/s^2
B. 4 m/s^2
C. 6 m/s^2
D. 8 m/s^2
Question 9
A 10 kg block is attached to a horizontal, massless spring with a force cons\tant of 100 N/m. The block is displaced by 2 m from its equilibrium position and released from rest. What is the angular frequency of the resulting simple harmonic motion?
A. 1.0 rad/s
B. 2.0 rad/s
C. 3.0 rad/s
D. 4.0 rad/s
Question 10
A 2 kg object is placed on a frictionless surface and a horizontal force of 5 N is applied to it. What is the acceleration of the object?
A. 1.0 m/s^2
B. 2.0 m/s^2
C. 3.0 m/s^2
D. 4.0 m/s^2
Question 11
A particle of mass 2 kg is moving in a circular orbit of radius 3 m with a speed of 4 m/s. If the particle is subject to a centripetal force of 10 N, what is the angular momentum of the particle?
A. 8 kg m^2/s
B. 12 kg m^2/s
C. 16 kg m^2/s
D. 20 kg m^2/s
Question 12
A vector A has a magnitude of 5 units and makes an angle of 30° with the x-axis. If a vector B has a magnitude of 3 units and makes an angle of 60° with the x-axis, calculate the magnitude of the resul\tant vector.
A. 6 units
B. 7 units
C. 8 units
D. 9 units
Question 13
A particle of mass 2 kg is moving in a circular path with a cons\tant speed of 4 m/s. If the radius of the path is 3 m, calculate the magnitude of the centripetal acceleration.
A. 10 m/s^2
B. 12 m/s^2
C. 15 m/s^2
D. 20 m/s^2
Question 14
A 3 kg object is moving in a circular path with a radius of 4 m. If the object's speed is 6 m/s, what is the centripetal force acting on it?
A. 10 N
B. 20 N
C. 30 N
D. 40 N
Question 15
A 5 kg object is moving in a straight line with an initial velocity of 10 m/s. After 2 s, its velocity is 15 m/s. What is the net force acting on the object?
A. 10 N
B. 20 N
C. 30 N
D. 40 N

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