Exam Body

Year

Subject

Paper Type

POST UTME COVENANT UNIVERSITY 2025 Physics | Objective

Are you preparing for POST UTME COVENANT UNIVERSITY exams? Reviewing past questions is one of the most effective ways to guarantee a high score. This practice hub features authentic 2025 Physics (Objective) questions designed to simulate the real exam environment.

Practice these randomly selected questions to test your readiness.

Question 1

A parallel plate capacitor has plates of area 0.04 m^2 and separation 0.02 m. If the capaci\tance is 8.0 x 10^-12 F, what is the charge stored when the potential difference between the plates is 10 V?

Correct A. 8.0 x 10^-11 C

B. 4.0 x 10^-11 C

C. 2.0 x 10^-11 C

D. 1.0 x 10^-11 C

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 2

A particle of mass 2.0 kg is moving in a circular path of radius 3.0 m with a speed of 4.0 m/s. What is the magnitude of the centripetal force acting on the particle?

A. 16 N

B. 32 N

Correct C. 64 N

D. 128 N

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 3

A radioactive sample has a half-life of 5.0 years. If the initial activity is 1000 Bq, what is the activity after 10 years?

A. 125 Bq

Correct B. 250 Bq

C. 500 Bq

D. 1000 Bq

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 4

A block of mass 5.0 kg is attached to a horizontal spring with a force cons\tant of 100 N/m. If the block is displaced by 2.0 m from its equilibrium position and released, what is the maximum speed of the block?

A. 2.0 m/s

B. 4.0 m/s

Correct C. 6.0 m/s

D. 8.0 m/s

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 5

A parallel plate capacitor has plates of area 0.04 m^2 and separation 0.02 m. If the capaci\tance is 8.0 x 10^-12 F, what is the energy stored when the potential difference between the plates is 10 V?

Correct A. 4.0 x 10^-10 J

B. 2.0 x 10^-10 J

C. 1.0 x 10^-10 J

D. 5.0 x 10^-11 J

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

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 subject to a centripetal force of 12 N, what is the magnitude of the acceleration of the particle?

A. 16 m/s^2

B. 12 m/s^2

Correct C. 8 m/s^2

D. 20 m/s^2

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

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 magnitude of the electric field between the plates when a charge of 2 x 10^-6 C is stored on the plates?

A. 2 x 10^4 N/C

Correct B. 1 x 10^4 N/C

C. 5 x 10^3 N/C

D. 1 x 10^3 N/C

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 8

A block of mass 5 kg is placed on a frictionless surface and attached to a horizontal spring with a force cons\tant of 100 N/m. If the block is displaced by 0.2 m from its equilibrium position and released from rest, what is the maximum speed of the block?

A. 2 m/s

B. 1 m/s

Correct C. 4 m/s

D. 3 m/s

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 9

A projectile is launched from the ground with an initial velocity of 20 m/s at an angle of 30° above the horizontal. If the acceleration due to gravity is 9.8 m/s^2, what is the maximum height reached by the projectile?

Correct A. 10 m

B. 5 m

C. 15 m

D. 20 m

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 10

A circuit consists of a 12 V battery, a 4 Ω resistor, and a 6 Ω resistor connected in series. If the current in the circuit is 2 A, what is the voltage across the 6 Ω resistor?

A. 12 V

B. 8 V

C. 10 V

Correct D. 6 V

Correct Answer: D

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 11

A particle of mass $m$ is confined to a one-dimensional box of length $L$. The ground state wave function of the particle is given by $psi_1(x) = \sqrt{\frac{2}{L}} \sinleft$ \frac{pi x}{L}\right $$. What is the expectation value of the position operator for this state?

Correct A. \frac{L}{2}

B. \frac{L}{4}

C. \frac{3L}{4}

D. 0

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 12

A sound wave with frequency $f$ and amplitude $A$ is propagating through a medium with speed $v$. What is the wavelength of the sound wave?

Correct A. \frac{v}{f}

B. \frac{f}{v}

C. \frac{A}{f}

D. \frac{v}{A}

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 13

A circuit consists of a resistor $R$, an inductor $L$, and a capacitor $C$ connected in series. The circuit is driven by a voltage source $V$ with frequency $f$. What is the impedance of the circuit?

Correct A. \sqrt{R^2 + $ X_L - X_C $^2}

B. R + X_L - X_C

C. R - X_L + X_C

D. R + X_L + X_C

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 14

A heat engine operates between two temperatures $T_1$ and $T_2$. The engine has an efficiency of $\eta$. What is the ratio of the temperatures?

Correct A. \frac{1}{\eta}

B. \eta

C. 1 - \eta

D. \frac{\eta}{1 - \eta}

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 15

A lens with focal length $f$ is used to form an image of an object at a dis\tance $d$. The magnification of the lens is $M$. What is the object dis\tance?

Correct A. \frac{f}{M}

B. \frac{M}{f}

C. f + M

D. f - M

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 16

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 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. 10 N

B. 20 N

Correct C. 30 N

D. 40 N

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 17

A parallel-plate capacitor has a capaci\tance of 10 μF and is charged to a potential difference of 5 V. If the dis\tance between the plates is doubled, what is the new capaci\tance?

Correct A. 2.5 μF

B. 5 μF

C. 10 μF

D. 20 μF

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 18

A particle of mass 1 kg is moving in a straight line with a velocity of 2 m/s. If the particle is subjected to a force of 5 N directed perp\endicular to its velocity, what is the magnitude of the acceleration of the particle?

A. 2 m/s^2

Correct B. 5 m/s^2

C. 10 m/s^2

D. 15 m/s^2

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 19

A simple harmonic motion has a maximum displacement of 2 m and a period of 4 s. If the motion starts from its equilibrium position, what is the equation of motion?

Correct A. x(t) = 2 \sin$ \frac{\pi}{2} t $

B. x(t) = 2 \cos$ \frac{\pi}{2} t $

C. x(t) = 2 \sin$ \frac{\pi}{4} t $

D. x(t) = 2 \cos$ \frac{\pi}{4} t $

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 20

A wave has a frequency of 50 Hz and a wavelength of 2 m. If the wave is traveling in the positive x-direction, what is the equation of the wave?

A. y(x,t) = A \sin$ \frac{\pi}{2} x - 2\pi ft $

Correct B. y(x,t) = A \sin$ \frac{2\pi}{2} x - 2\pi ft $

C. y(x,t) = A \cos$ \frac{2\pi}{2} x - 2\pi ft $

D. y(x,t) = A \cos$ \frac{\pi}{2} x - 2\pi ft $

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 21

A 10 Ω resistor is connected in series with a 20 Ω resistor and a 30 Ω resistor. If a 12 V battery is connected across the circuit, what is the current flowing through the 10 Ω resistor?

A. 0.4 A

B. 0.6 A

Correct C. 0.8 A

D. 1.2 A

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 22

A parallel plate capacitor has a capaci\tance of 10 μF. If a voltage of 20 V is applied across the plates, what is the energy stored in the capacitor?

A. 0.02 J

Correct B. 0.04 J

C. 0.06 J

D. 0.08 J

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 23

A \sinusoidal voltage of 10 V is applied across a 20 Ω resistor. If the frequency of the voltage is 50 Hz, what is the rms value of the current flowing through the resistor?

A. 0.25 A

Correct B. 0.5 A

C. 0.75 A

D. 1 A

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 24

A radioactive sample has a half-life of 10 years. If the initial activity of the sample is 100 Bq, what is the activity of the sample after 20 years?

A. 12.5 Bq

Correct B. 25 Bq

C. 50 Bq

D. 100 Bq

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 25

A 5 μF capacitor is connected in series with a 10 Ω resistor. If a 12 V battery is connected across the circuit, what is the time cons\tant of the circuit?

A. 0.2 s

Correct B. 0.4 s

C. 0.6 s

D. 0.8 s

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

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:

Chat with Support