POST UTME DELSU 2017 Physics | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A light ray passes through a prism of angle 60° and is re\fracted at an angle of 30°. What is the angle of deviation?
A. ( 30° )
B. ( 45° )
C. ( 60° )
D. ( 90° )
Question 2
A simple harmonic motion has a maximum displacement of 2 m and a period of 4 s. If the motion starts from its equilibrium position, what is the amplitude of the motion?
A. 1 m
B. 2 m
C. 3 m
D. 4 m
Question 3
A particle of mass 1 kg is moving in a circular path of radius 2 m with a cons\tant speed of 3 m/s. What is the magnitude of the centripetal force acting on the particle?
A. ( 3 ) N
B. ( 6 ) N
C. ( 9 ) N
D. ( 12 ) N
Question 4
A 12 V battery is connected in series with a 4 Ω resistor and a 6 Ω resistor. What is the current in the circuit?
A. 2 A
B. 3 A
C. 4 A
D. 6 A
Question 5
A magnetic field of 0.5 T is applied to a current-carrying wire of length 2 m. If the current in the wire is 2 A, what is the magnitude of the force acting on the wire?
A. 0.5 N
B. 1 N
C. 2 N
D. 4 N
Question 6
A block of mass 5 kg is placed on a frictionless surface and a horizontal force of 10 N is applied to it. What is the acceleration of the block?
A. 2 m/s^2
B. 4 m/s^2
C. 6 m/s^2
D. 8 m/s^2
Question 7
A magnetic field of strength 0.5 T is applied to a current-carrying wire of length 2 m. If the current in the wire is 2 A, what is the magnitude of the force experienced by the wire?
A. 0.1 N
B. 0.2 N
C. 0.5 N
D. 1 N
Question 8
A gas at 300 K is heated to 500 K. Assuming the volume remains cons\tant, calculate the ratio of the final pressure to the initial pressure.
A. 1.67
B. 2.00
C. 3.33
D. 4.00
Question 9
A 2.5 mH inductor is connected in series with a 10 Ω resistor and a 20 V AC source. If the frequency of the source is 50 Hz, calculate the impedance of the circuit.
A. 10 Ω
B. 20 Ω
C. 30 Ω
D. 40 Ω
Question 10
A particle is projected at an angle of 60° to the horizontal with an initial velocity of 20 m/s. If the acceleration due to gravity is 9.8 m/s^2, what is the time of flight?
A. 1.5 s
B. 2.0 s
C. 2.5 s
D. 3.0 s
Question 11
A photon of energy 2 eV is incident on a metal surface with work function 1 eV. What is the maximum kinetic energy of the photoelectron?
A. 0.5 eV
B. 1 eV
C. 1.5 eV
D. 2 eV
Question 12
A gas is contained in a cylinder of volume 2 L at a temperature of 300 K. If the pressure of the gas is 2 atm, what is the number of moles of the gas present?
A. 0.1 mol
B. 0.2 mol
C. 0.3 mol
D. 0.4 mol
Question 13
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 from rest, calculate the maximum kinetic energy of the particle.
A. 0.5 J
B. 1.0 J
C. 1.5 J
D. 2.0 J
Question 14
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 force acting on the particle?
A. ( 8 ) N
B. ( 16 ) N
C. ( 24 ) N
D. ( 32 ) N
Question 15
A 10 µF capacitor is connected in parallel with a 20 µF capacitor. If the voltage across the 10 µF capacitor is 50 V, calculate the current through the 20 µF capacitor.
A. 0.5 A
B. 1.0 A
C. 1.5 A
D. 2.0 A

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