Exam Body

Year

Subject

Paper Type

POST UTME EKSU 2023 Physics | Objective

Are you preparing for POST UTME EKSU exams? Reviewing past questions is one of the most effective ways to guarantee a high score. This practice hub features authentic 2023 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 0.1 m^2 and separation 0.01 m. If the capaci\tance is 10 nF, what is the value of the dielectric cons\tant?

Correct A. 1.0

B. 2.0

C. 3.0

D. 4.0

Correct Answer: A

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

Question 2

A light ray passes through a prism and is re\fracted. If the angle of incidence is 30° and the angle of re\fraction is 40°, what is the angle of deviation?

A. 10°

B. 20°

Correct C. 30°

D. 40°

Correct Answer: C

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

Question 3

A circuit consists of a 12 V battery, a 4 Ω resistor, and a 6 Ω resistor connected in series. What is the current flowing through the circuit?

A. 1.5 A

Correct B. 2.0 A

C. 2.5 A

D. 3.0 A

Correct Answer: B

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

Question 4

A radioactive sample has a half-life of 5 years. If the initial activity is 100 Bq, what is the activity after 10 years?

A. 50 Bq

B. 25 Bq

C. 12.5 Bq

Correct D. 6.25 Bq

Correct Answer: D

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

Question 5

A light source emits a beam of light with a wavelength of 500 nm. If the light passes through a dif\fraction grating with 1000 lines/mm, what is the angle of dif\fraction?

A. 10°

B. 20°

Correct C. 30°

D. 40°

Correct Answer: C

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

Question 6

A particle of mass 2 kg is attached to a spring with spring cons\tant 100 N/m. It is displaced by 0.2 m from its equilibrium position and released from rest. Assuming the motion is simple harmonic, calculate the total energy of the particle at time t = 0.5 s.

A. 10 J

Correct B. 20 J

C. 30 J

D. 40 J

Correct Answer: B

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

Question 7

A wave of amplitude 0.5 m and frequency 5 Hz is traveling along a string. Calculate the wavelength of the wave.

A. 0.1 m

Correct B. 0.2 m

C. 0.3 m

D. 0.4 m

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 horizontal surface. A horizontal force of 20 N is applied to the block. If the coefficient of kinetic friction between the block and the surface is 0.2, calculate the acceleration of the block.

A. 0.5 m/s^2

B. 1 m/s^2

Correct C. 2 m/s^2

D. 3 m/s^2

Correct Answer: C

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

Question 9

A circuit consists of a 10 Ω resistor, a 20 Ω resistor, and a 5 Ω resistor connected in series. A voltage of 12 V is applied across the circuit. Calculate the current flowing through the circuit.

A. 0.5 A

Correct B. 1 A

C. 2 A

D. 3 A

Correct Answer: B

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

Question 10

A wave of wavelength 2 m and frequency 5 Hz is traveling along a string. Calculate the speed of the wave.

A. 10 m/s

Correct B. 20 m/s

C. 30 m/s

D. 40 m/s

Correct Answer: B

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

Question 11

A particle of mass 2 kg is attached to a spring with a spring cons\tant of 100 N/m. It is displaced by 0.2 m from its equilibrium position and released from rest. Assuming the motion is simple harmonic, calculate the angular frequency of the particle's motion.

A. 5 rad/s

B. 10 rad/s

Correct C. 20 rad/s

D. 50 rad/s

Correct Answer: C

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

Question 12

A wave has a frequency of 20 Hz and a wavelength of 0.5 m. Calculate the speed of the wave.

A. 10 m/s

Correct B. 20 m/s

C. 40 m/s

D. 80 m/s

Correct Answer: B

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

Question 13

A capacitor consists of two parallel plates, each of area 0.01 m^2, separated by a dis\tance of 0.001 m. The dielectric cons\tant of the material between the plates is 2. Calculate the capaci\tance of the capacitor.

A. 8.85 x 10^-11 F

B. 1.77 x 10^-10 F

Correct C. 3.54 x 10^-10 F

D. 7.08 x 10^-10 F

Correct Answer: C

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

Question 14

A charge of 2 C is placed at the center of a circular loop of radius 0.1 m. Calculate the electric field at a point on the circumference of the loop.

A. 2 x 10^5 N/C

B. 4 x 10^5 N/C

Correct C. 6 x 10^5 N/C

D. 8 x 10^5 N/C

Correct Answer: C

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

Question 15

A 10 kg object is moving in a circular path with a radius of 5 m. If the object's speed is 20 m/s, calculate the centripetal acceleration.

A. 2 m/s^2

B. 4 m/s^2

Correct C. 6 m/s^2

D. 8 m/s^2

Correct Answer: C

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

Question 16

A 5 kg object is moving in a straight line with a velocity of 10 m/s. If the object experiences a force of 20 N, calculate the acceleration.

A. 2 m/s^2

B. 4 m/s^2

Correct C. 6 m/s^2

D. 8 m/s^2

Correct Answer: C

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

Question 17

A 2 kg object is moving in a circular path with a radius of 3 m. If the object's speed is 15 m/s, calculate the centripetal force.

A. 30 N

B. 60 N

Correct C. 90 N

D. 120 N

Correct Answer: C

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

Question 18

A particle of mass 2 kg is projected from the origin with an initial velocity of 20 m/s at an angle of 60° above the horizontal. Assuming the acceleration due to gravity is 9.8 m/s², calculate the time taken for the particle to reach its maximum height.

A. 1.5 s

Correct B. 2.0 s

C. 2.5 s

D. 3.0 s

Correct Answer: B

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

Question 19

A gas occupies a volume of 2.5 L at a pressure of 1.5 atm. If the pressure is increased to 3.0 atm, calculate the new volume of the gas, assuming the temperature remains cons\tant.

A. 1.5 L

Correct B. 2.0 L

C. 2.5 L

D. 3.0 L

Correct Answer: B

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

Question 20

A force of 10 N acts on an object, cau\sing it to accelerate at 2 m/s². If the mass of the object is 5 kg, calculate the net force acting on the object.

A. 5 N

Correct B. 10 N

C. 15 N

D. 20 N

Correct Answer: B

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

Question 21

A capacitor consists of two parallel plates, each with a surface area of 0.1 m². The dis\tance between the plates is 0.01 m. If the dielectric cons\tant of the material between the plates is 2.5, calculate the capaci\tance of the capacitor.

A. 1.0 μF

Correct B. 2.0 μF

C. 3.0 μF

D. 4.0 μF

Correct Answer: B

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

Question 22

A current of 5 A flows through a resistor of 10 Ω. Calculate the power dissipated by the resistor.

A. 25 W

Correct B. 50 W

C. 75 W

D. 100 W

Correct Answer: B

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

Question 23

A particle of mass 2 kg is attached to a spring with a spring cons\tant of 100 N/m. The particle is displaced by 0.5 m from its equilibrium position and released from rest. Assuming the motion is simple harmonic, calculate the total energy of the particle at any ins\tant.

A. 10 J

Correct B. 20 J

C. 30 J

D. 40 J

Correct Answer: B

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

Question 24

A circuit consists of a 10 Ω resistor, a 20 Ω resistor, and a 5 Ω resistor connected in series. A 12 V battery is connected across the circuit. Calculate the current flowing through the 5 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 25

A radioactive sample decays from 100 g to 50 g in 10 years. Calculate the half-life of the sample.

A. 5 years

Correct B. 10 years

C. 15 years

D. 20 years

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