POST UTME UNN 2023 Physics | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A block of mass 5 kg is placed on a frictionless surface and a horizontal force of 10 N is applied to it. If the block is displaced by 2 m, what is the work done on the block?
A. 20 J
B. 30 J
C. 40 J
D. 50 J
Question 2
A block of mass 10 kg is placed on a frictionless surface and a horizontal force of 20 N is applied to it. What is the acceleration of the block?
A. 2 m/s^2
B. 4 m/s^2
C. 6 m/s^2
D. 8 m/s^2
Question 3
A particle of mass 2 kg is moving in a circular path with a cons\tant speed of 4 m/s. The radius of the circle is 3 m. What is the magnitude of the centripetal acceleration of the particle?
A. 2 m/s^2
B. 4 m/s^2
C. 6 m/s^2
D. 8 m/s^2
Question 4
A block of mass 10 kg is placed on a frictionless surface and a horizontal force of 20 N is applied to it. What is the work done on the block?
A. 20 J
B. 40 J
C. 60 J
D. 80 J
Question 5
A photon has an energy of 2.5 eV. What is its wavelength?
A. 500 nm
B. 750 nm
C. 1000 nm
D. 1250 nm
Question 6
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 7
A capacitor consists of two parallel plates, each of area 0.1 m^2, separated by a dis\tance of 0.01 m. If the capaci\tance of the capacitor is 10^-6 F, what is the charge stored on the capacitor when a potential difference of 100 V is applied across it?
A. 10^-5 C
B. 10^-4 C
C. 10^-3 C
D. 10^-2 C
Question 8
A gas at 300 K is heated to 500 K. If the initial volume is 2.5 L, what is the final volume if the gas obeys Charles' Law?
A. 5.0 L
B. 6.25 L
C. 7.5 L
D. 10.0 L
Question 9
A 10 V battery is connected in series with a 5 Ω resistor and a 10 Ω resistor. What is the current flowing through the circuit?
A. 0.5 A
B. 1 A
C. 2 A
D. 3 A
Question 10
A body of mass 5 kg is moving with a velocity of 10 m/s. If it is subjected to a force of 20 N, what is the acceleration produced?
A. 2 m/s^2
B. 4 m/s^2
C. 6 m/s^2
D. 8 m/s^2
Question 11
A 10 μF capacitor is connected in parallel with a 20 μF capacitor. What is the equivalent capaci\tance of the circuit?
A. 10 μF
B. 20 μF
C. 30 μF
D. 40 μF
Question 12
A 10 Ω resistor is connected in series with a 5 Ω resistor and a 30 Ω resistor. What is the equivalent resis\tance of the circuit?
A. 20 Ω
B. 30 Ω
C. 40 Ω
D. 50 Ω
Question 13
A light ray passes through a lens and is re\fracted. If the angle of incidence is 30° and the angle of re\fraction is 20°, what is the angle of deviation?
A. 10°
B. 20°
C. 30°
D. 40°
Question 14
A 100 μF capacitor is connected in parallel with a 10 μF capacitor. What is the equivalent capaci\tance of the circuit?
A. 100 μF
B. 110 μF
C. 120 μF
D. 130 μF
Question 15
A simple harmonic motion has a time period of 2 s and an amplitude of 5 m. If the initial phase angle is 30°, what is the equation of motion?
A. y = 5 \sin\( πt - π/6 \)
B. y = 5 \sin\( πt + π/6 \)
C. y = 5 \sin\( πt - π/3 \)
D. y = 5 \sin\( πt + π/3 \)

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: