POST UTME VERITAS UNIVERSITY 2022 Physics | Objective

Practice these randomly selected questions to test your readiness.

Question 1
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 2
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 3
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 4
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 5
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 6
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 uniform magnetic field of magnitude 2 T directed perp\endicular to the plane of the circular path, what is the magnitude of the magnetic force acting on the particle?
A. 6 N
B. 8 N
C. 10 N
D. 12 N
Question 7
A particle is moving in a circular path with a radius of 3 m. If it completes one revolution in 2 seconds, what is its angular velocity?
A. 1.5 rad/s
B. 3 rad/s
C. 0.5 rad/s
D. 6 rad/s
Question 8
A simple harmonic motion has a maximum displacement of 2 m and a period of 4 seconds. What is its angular frequency?
A. 1.5 rad/s
B. 3 rad/s
C. 0.5 rad/s
D. 6 rad/s
Question 9
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 10
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 11
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 12
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 13
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 14
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 15
A 100 Ω resistor, a 200 Ω resistor, and a 300 Ω resistor are connected in parallel across a 12 V battery. Calculate the total current drawn from the battery.
A. 0.2 A
B. 0.4 A
C. 0.6 A
D. 0.8 A

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