POST UTME NOUN 2024 Physics | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A particle of mass 5 kg is moving in a circular path with a radius of 2 m. If the particle has a velocity of 4 m/s, what is the centripetal acceleration?
A. 1 m/s^2
B. 2 m/s^2
C. 4 m/s^2
D. 8 m/s^2
Question 2
A lens with a focal length of 20 cm is used to form an image of an object 30 cm away. What is the magnification of the image?
A. -1
B. -2
C. -3
D. -4
Question 3
A spring is stretched by 2 m from its equilibrium position and released from rest. If the spring cons\tant is 20 N/m, what is the maximum speed of the spring?
A. 2 m/s
B. 4 m/s
C. 6 m/s
D. 8 m/s
Question 4
A uniform magnetic field of 2 T is applied to a coil of wire with 100 turns. The coil has a radius of 0.05 m and a resis\tance of 5 Ω. If the current in the coil is 2 A, what is the induced emf?
A. 0.1 V
B. 0.2 V
C. 0.5 V
D. 1 V
Question 5
A 100 Ω resistor is connected in series with a 50 Ω resistor and a 200 Ω resistor. What is the total resis\tance of the circuit?
A. 300 Ω
B. 350 Ω
C. 400 Ω
D. 450 Ω
Question 6
A wave has a frequency of 100 Hz and a wavelength of 0.1 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 7
A 5 kg block is moving in a straight line with a velocity of 2 m/s. If the block experiences a cons\tant acceleration of 1 m/s^2, calculate the time taken for the block to reach a velocity of 6 m/s.
A. 2 s
B. 3 s
C. 4 s
D. 5 s
Question 8
A 100 W light bulb is connected to a 220 V AC source. If the power factor of the bulb is 0.8, calculate the current drawn by the bulb.
A. 0.45 A
B. 0.5 A
C. 0.55 A
D. 0.6 A
Question 9
A heat engine operates between two temperatures $T_1$ and $T_2$. The engine has an efficiency of $\eta = 1 - \frac{T_2}{T_1}$. If the temperature of the hot reservoir is doubled, what is the new efficiency of the engine?
A. \frac{\eta}{2}
B. 2\eta
C. \eta
D. \frac{2\eta}{3}
Question 10
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 11
A gas is contained in a cylinder of volume 2 m^3 at a pressure of 1 atm. If the temperature of the gas is increased by 10°C, what is the new pressure of the gas?
A. 1.2 atm
B. 1.5 atm
C. 2.0 atm
D. 2.5 atm
Question 12
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 net force acting on the particle?
A. 12 N
B. 16 N
C. 20 N
D. 24 N
Question 13
A circuit consists of a 10 Ω resistor, a 20 μF capacitor, and a 100 mH inductor in series. If the circuit is driven by a 10 V AC source with a frequency of 50 Hz, what is the impedance of the circuit?
A. 10 Ω
B. 20 Ω
C. 30 Ω
D. 40 Ω
Question 14
A capacitor consists of two parallel plates separated by a dis\tance $d$. The plates have a surface charge density of $\sigma$. What is the capaci\tance of the capacitor?
A. \frac{\sigma A}{d}
B. \frac{\sigma A}{2d}
C. \frac{2\sigma A}{d}
D. \frac{\sigma A}{4d}
Question 15
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 experiences a centripetal acceleration of 2 m/s^2, what is the magnitude of the force acting on the particle?
A. 8 N
B. 10 N
C. 12 N
D. 16 N

Master the Exam!

You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.

Unlock Full Access Available for Android & Windows
Help others prepare! Share this practice hub: