POST UTME VERITAS UNIVERSITY 2018 Physics | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A wave has a frequency of 50 Hz and a wavelength of 0.2 m. What is the speed of the wave?
A. 10 m/s
B. 20 m/s
C. 30 m/s
D. 40 m/s
Question 2
A uniform magnetic field of magnitude 2 T is directed along the z-axis. A current of 5 A flows in a circular loop of radius 0.1 m, placed in the x-y plane. What is the magnitude of the magnetic moment of the loop?
A. 0.1 A m^2
B. 0.5 A m^2
C. 1 A m^2
D. 5 A m^2
Question 3
A particle of mass 0.5 kg is moving in a circular path of radius 2 m with a cons\tant speed of 4 m/s. If the particle is subjected to a centripetal force of 10 N, what is the magnitude of the force?
A. 5 N
B. 10 N
C. 15 N
D. 20 N
Question 4
A 10 Ω resistor is connected in series with a 20 Ω resistor and a 30 Ω resistor. What is the equivalent resis\tance?
A. 10 Ω
B. 20 Ω
C. 30 Ω
D. 60 Ω
Question 5
A projectile is launched at an angle of 45° with an initial velocity of 20 m/s. What is the maximum height?
A. 10 m
B. 20 m
C. 30 m
D. 40 m
Question 6
A convex lens has a focal length of 10 cm and is used to form an image of an object placed 20 cm in front of it. What is the magnification of the lens?
A. 0.5
B. 1
C. 2
D. 3
Question 7
A parallel plate capacitor has plates of area 0.04 m^2 and separation 0.02 m. If the dielectric cons\tant of the material between the plates is 3, what is the capaci\tance?
A. 1.6 x 10^-10 F
B. 3.2 x 10^-10 F
C. 6.4 x 10^-10 F
D. 12.8 x 10^-10 F
Question 8
A particle of mass 0.5 kg is moving in a circular path of radius 2 m with a cons\tant speed of 4 m/s. What is the magnitude of the force acting on the particle?
A. 2 N
B. 4 N
C. 6 N
D. 8 N
Question 9
A ray of light passes from air into a glass block with a re\fractive index of 1.5. If the angle of incidence is 30°, what is the angle of re\fraction?
A. 20°
B. 30°
C. 40°
D. 50°
Question 10
A 100 V, 50 Hz AC supply is connected to a 50 Ω resistor. What is the rms value of the current flowing through the resistor?
A. 0.5 A
B. 1 A
C. 1.5 A
D. 2 A
Question 11
A body of mass 5 kg is moving with a velocity of 10 m/s. What is its kinetic energy?
A. 50 J
B. 100 J
C. 150 J
D. 200 J
Question 12
A particle of mass 2 kg is moving in a circular path of radius 3 m with a speed of 4 m/s. What is the centripetal acceleration?
A. 0.5 m/s^2
B. 1.0 m/s^2
C. 2.0 m/s^2
D. 4.0 m/s^2
Question 13
A radioactive sample has a half-life of 10 years. If the initial activity is 100 Bq, what is the activity after 20 years?
A. 12.5 Bq
B. 25 Bq
C. 50 Bq
D. 100 Bq
Question 14
A particle of mass 2 kg is moving in a circular path with a radius of 3 m. If the particle has a speed of 4 m/s, what is the centripetal force acting on the particle?
A. 24 N
B. 48 N
C. 96 N
D. 192 N
Question 15
A block of mass 2 kg is attached to a spring with a spring cons\tant of 100 N/m. If the block is displaced by 0.1 m from its equilibrium position and released, what is the maximum velocity of the block?
A. 0.5 m/s
B. 1 m/s
C. 1.5 m/s
D. 2 m/s

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