POST UTME MADONNA UNIVERSITY 2021 Physics | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A 10 Ω resistor is connected in series with a 20 Ω resistor and a 30 Ω resistor. If a voltage of 12 V is applied across the circuit, what is the current flowing through the 20 Ω resistor?
A. 0.4 A
B. 0.6 A
C. 0.8 A
D. 1.0 A
Question 2
A pump is used to raise water from a depth of 10 m to a height of 20 m. If the pump is able to raise 0.5 m^3 of water per minute, what is the power of the pump?
A. 1.5 kW
B. 2.0 kW
C. 2.5 kW
D. 3.0 kW
Question 3
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 magnitude of the acceleration of the particle?
A. 10 m/s^2
B. 12 m/s^2
C. 15 m/s^2
D. 20 m/s^2
Question 4
A ray of light passes from air into a glass slab of re\fractive index 1.5. If the angle of incidence is 30°, what is the angle of re\fraction?
A. 20°
B. 25°
C. 30°
D. 35°
Question 5
A block of mass 5 kg is placed on a frictionless surface and connected to a horizontal spring with a force cons\tant of 200 N/m. If the block is displaced by 0.2 m from its equilibrium position and released from rest, what is the maximum speed of the block?
A. 1.6 m/s
B. 2.0 m/s
C. 2.4 m/s
D. 3.2 m/s

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