POST UTME OSUSTECH 2024 Physics | Objective

Are you preparing for POST UTME OSUSTECH exams? Reviewing past questions is one of the most effective ways to guarantee a high score. This practice hub features authentic 2024 Physics (Objective) questions designed to simulate the real exam environment.

Practice these randomly selected questions to test your readiness.

Question 1
A particle of mass 2 kg is attached to a spring with a spring cons\tant of 100 N/m. If the particle is displaced by 0.2 m from its equilibrium position and released from rest, what is the angular frequency of the resulting simple harmonic motion?
A. 2 rad/s
B. 5 rad/s
Correct C. 10 rad/s
D. 20 rad/s

Correct Answer: C

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Question 2
A light ray 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?
Correct A. 20°
B. 30°
C. 40°
D. 50°

Correct Answer: A

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Question 3
A circuit consists of a 12 V battery, a 4 Ω resistor, and a 2 Ω resistor connected in series. What is the current flowing through the 4 Ω resistor?
A. 1 A
Correct B. 2 A
C. 3 A
D. 4 A

Correct Answer: B

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Question 4
A sound wave with a frequency of 200 Hz has a speed of 340 m/s. What is the wavelength of the sound wave?
A. 1.7 m
B. 1.8 m
Correct C. 1.9 m
D. 2.0 m

Correct Answer: C

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Question 5
A particle is moving in a circular path with a radius of 2 m. If the particle completes one revolution in 4 s, what is its angular velocity?
A. 1.57 rad/s
B. 3.14 rad/s
Correct C. 6.28 rad/s
D. 12.56 rad/s

Correct Answer: C

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Question 6
A 10 Ω resistor is connected in series with a 20 Ω resistor and a 30 Ω resistor. If the total resis\tance is 60 Ω, what is the value of the unknown resistor?
A. 5 Ω
Correct B. 15 Ω
C. 25 Ω
D. 35 Ω

Correct Answer: B

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Question 7
A 100 V AC supply is connected to a circuit containing a 20 Ω resistor and a 10 Ω inductor in series. If the current in the circuit is 2 A, what is the impedance of the circuit?
A. 30 Ω
B. 40 Ω
Correct C. 50 Ω
D. 60 Ω

Correct Answer: C

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Question 8
A body of mass 5 kg is moving with a velocity of 10 m/s. If the body is subjected to a force of 20 N, what is the acceleration of the body?
A. 2 m/s^2
B. 4 m/s^2
C. 6 m/s^2
Correct D. 8 m/s^2

Correct Answer: D

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Question 9
A 10 kg block is placed on a frictionless surface and a horizontal force of 20 N is applied to it. If the block starts from rest, what is its velocity after 2 s?
A. 4 m/s
B. 6 m/s
Correct C. 8 m/s
D. 10 m/s

Correct Answer: C

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Question 10
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 its maximum velocity?
A. 2 m/s
B. 4 m/s
Correct C. 6 m/s
D. 8 m/s

Correct Answer: C

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Question 11
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. 1 m/s^2
B. 2 m/s^2
Correct C. 3 m/s^2
D. 4 m/s^2

Correct Answer: C

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Question 12
A capacitor of capaci\tance 5 μF is connected to a battery of voltage 10 V. If the capacitor is initially uncharged, what is the charge on the capacitor after 2 seconds?
A. 0.02 C
Correct B. 0.04 C
C. 0.06 C
D. 0.08 C

Correct Answer: B

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Question 13
A block of mass 10 kg is attached to a horizontal spring with a spring cons\tant of 20 N/m. If the block is displaced by 2 m from its equilibrium position and released from rest, what is the maximum speed of the block?
A. 2 m/s
B. 4 m/s
Correct C. 6 m/s
D. 8 m/s

Correct Answer: C

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Question 14
A parallel plate capacitor consists of two plates of area 0.1 m^2 and separation 0.01 m. If the capacitor is connected to a battery of voltage 12 V, what is the capaci\tance of the capacitor?
A. 0.01 F
B. 0.02 F
C. 0.03 F
Correct D. 0.04 F

Correct Answer: D

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Question 15
A current of 5 A flows through a resistor of resis\tance 10 Ω. If the voltage across the resistor is 20 V, what is the power dissipated by the resistor?
A. 10 W
B. 20 W
Correct C. 30 W
D. 40 W

Correct Answer: C

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Question 16
A block of mass 5 kg is moving in a circular path of radius 4 m with a cons\tant speed of 3 m/s. If the block is subjected to a centripetal force of 15 N, what is the magnitude of the acceleration of the block?
A. 1 m/s^2
B. 2 m/s^2
Correct C. 3 m/s^2
D. 4 m/s^2

Correct Answer: C

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Question 17
A capacitor of capaci\tance 3 μF is connected to a battery of voltage 15 V. If the capacitor is initially uncharged, what is the charge on the capacitor after 3 seconds?
A. 0.03 C
B. 0.06 C
Correct C. 0.09 C
D. 0.12 C

Correct Answer: C

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Question 18
A block of mass 8 kg is attached to a horizontal spring with a spring cons\tant of 30 N/m. If the block is displaced by 3 m from its equilibrium position and released from rest, what is the maximum speed of the block?
A. 4 m/s
B. 6 m/s
C. 8 m/s
D. 10 m/s

Correct Answer: VIEW ANSWER

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Question 19
A parallel plate capacitor has plates of area 0.04 m^2 and separation 0.02 m. If a potential difference of 10 V is applied across the plates, calculate the capaci\tance.
A. 2.5 x 10^-11 F
Correct B. 5 x 10^-11 F
C. 1 x 10^-10 F
D. 2 x 10^-10 F

Correct Answer: B

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Question 20
A particle of mass 0.5 kg is attached to a spring with spring cons\tant 10 N/m. If the particle is displaced by 0.2 m from its equilibrium position and released from rest, calculate the frequency of oscillation.
A. 0.5 Hz
Correct B. 1 Hz
C. 2 Hz
D. 5 Hz

Correct Answer: B

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Question 21
A block of wood with density 500 kg/m^3 is floating in water. If the block has a volume of 0.1 m^3, calculate the weight of the block.
A. 49 N
Correct B. 98 N
C. 147 N
D. 196 N

Correct Answer: B

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Question 22
A wave has a frequency of 50 Hz and a wavelength of 0.1 m. Calculate the speed of the wave.
A. 5 m/s
B. 10 m/s
Correct C. 20 m/s
D. 50 m/s

Correct Answer: C

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Question 23
A sound wave has a frequency of 200 Hz and a speed of 343 m/s. Calculate the wavelength of the wave.
A. 1.7 m
B. 1.8 m
C. 1.9 m
Correct D. 2 m

Correct Answer: D

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Question 24
A particle is moving in a circular path with a radius of 0.5 m. If the particle completes one revolution in 2 s, calculate the angular velocity.
A. 1.57 rad/s
B. 3.14 rad/s
Correct C. 6.28 rad/s
D. 12.56 rad/s

Correct Answer: C

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Question 25
A simple harmonic motion has a maximum displacement of 0.2 m and a frequency of 5 Hz. Calculate the angular frequency.
A. 10 rad/s
Correct B. 20 rad/s
C. 30 rad/s
D. 40 rad/s

Correct Answer: B

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