POST UTME VERITAS UNIVERSITY 2022 Physics | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A gas is compressed from an initial volume of 2 m^3 to a final volume of 1 m^3. If the initial pressure is 200 kPa, what is the final pressure?
A. 400 kPa
B. 200 kPa
C. 100 kPa
D. 50 kPa
Question 2
A projectile is launched at an angle of 45° with an initial velocity of 20 m/s. If the air resis\tance is negligible, what is the maximum height reached by the projectile?
A. 10 m
B. 15 m
C. 20 m
D. 25 m
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 wave has a frequency of 50 Hz and a wavelength of 2 m. What is its speed?
A. 100 m/s
B. 50 m/s
C. 200 m/s
D. 25 m/s
Question 5
A photon of wavelength 600 nm is incident on a metal surface. If the work function of the metal is 2.5 eV, what is the maximum kinetic energy of the photoelectrons emitted?
A. 1.5 eV
B. 2.0 eV
C. 2.5 eV
D. 3.0 eV
Question 6
A block of mass 5 kg is placed on a horizontal, frictionless surface. A horizontal force of 20 N is applied to the block. If the block starts from rest, what is its velocity after 2 seconds?
A. 10 m/s
B. 20 m/s
C. 5 m/s
D. 4 m/s
Question 7
A 5 kg block is attached to a horizontal, massless spring with a force cons\tant of 200 N/m. The block is displaced by 0.2 m from its equilibrium position and released from rest. Assuming the block undergoes simple harmonic motion, calculate the maximum speed of the block as it passes through the equilibrium position.
A. 2 m/s
B. 4 m/s
C. 6 m/s
D. 8 m/s
Question 8
A light ray 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 9
A 5 kg block is attached to a horizontal spring with a force cons\tant of 100 N/m. If the block is displaced by 2 m from its equilibrium position and released, what is the maximum speed of the block?
A. 2 m/s
B. 4 m/s
C. 6 m/s
D. 8 m/s
Question 10
A projectile is launched from the ground with an initial velocity of 20 m/s at an angle of 30° above the horizontal. If air resis\tance is neglected, what is the maximum height reached by the projectile?
A. 10 m
B. 15 m
C. 20 m
D. 25 m
Question 11
A block of ice is placed on a frictionless surface and is given an initial velocity of 10 m/s. Assuming the block undergoes uniform acceleration, calculate the time it takes for the block to come to rest.
A. 2 s
B. 4 s
C. 6 s
D. 8 s
Question 12
A body of mass 2 kg is moving with a velocity of 5 m/s. Calculate the work done by a force of 10 N acting on the body.
A. 50 J
B. 100 J
C. 150 J
D. 200 J
Question 13
A heat engine operates between two reservoirs at temperatures 500 K and 300 K. If the engine absorbs 200 J of heat from the high-temperature reservoir in one cycle, what is the efficiency of the engine?
A. 0.25
B. 0.30
C. 0.35
D. 0.40
Question 14
A resistor of 10 Ω is connected in series with a capacitor of 100 μF and an inductor of 50 mH. If an AC voltage of 100 V is applied across the circuit, what is the impedance of the circuit?
A. 15 Ω
B. 20 Ω
C. 25 Ω
D. 30 Ω
Question 15
A radioactive sample decays at a rate of 0.05% per minute. If the initial activity is 1000 Bq, what is the activity after 10 minutes?
A. 900 Bq
B. 950 Bq
C. 975 Bq
D. 990 Bq

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