Exam Body

Year

Subject

Paper Type

POST UTME ACHIEVERS UNIVERSITY 2022 Physics | Objective

Are you preparing for POST UTME ACHIEVERS UNIVERSITY exams? Reviewing past questions is one of the most effective ways to guarantee a high score. This practice hub features authentic 2022 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 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 acceleration of 2 m/s^2, what is the magnitude of the force acting on the particle?

A. 6 N

B. 8 N

Correct C. 10 N

D. 12 N

Correct Answer: C

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

Question 2

A 5 μF capacitor is connected in series with a 10 kΩ resistor and a 20 V battery. What is the time cons\tant of the circuit?

A. 0.1 s

Correct B. 0.2 s

C. 0.5 s

D. 1 s

Correct Answer: B

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

Question 3

A wave has a frequency of 50 Hz and a wavelength of 0.1 m. What is the speed of the wave?

A. 5 m/s

B. 10 m/s

C. 20 m/s

Correct D. 50 m/s

Correct Answer: D

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

Question 4

A body is moving in a straight line with a velocity of 10 m/s. If the body is subjected to a cons\tant acceleration of 2 m/s^2, what is the dis\tance traveled by the body in 5 seconds?

A. 25 m

B. 50 m

Correct C. 75 m

D. 100 m

Correct Answer: C

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

Question 5

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

Correct C. 30 μF

D. 40 μF

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 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 angle between the force and the radius vector at the ins\tant when the particle is at the top of its path?

A. 30°

Correct B. 45°

C. 60°

D. 90°

Correct Answer: B

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

Question 7

A radioactive sample has a half-life of 5 years. If the initial activity is 100 Bq, what is the activity after 15 years?

Correct A. 3.125 Bq

B. 6.25 Bq

C. 12.5 Bq

D. 25 Bq

Correct Answer: A

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

Question 8

A block of mass 5 kg is susp\ended from a spring with a spring cons\tant of 200 N/m. If the block is displaced by 0.2 m from its equilibrium position and released, what is the maximum velocity of the block?

A. 0.5 m/s

Correct B. 1 m/s

C. 1.5 m/s

D. 2 m/s

Correct Answer: B

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

Question 9

A magnetic field of 0.5 T is directed perp\endicular to a current-carrying wire of length 2 m. If the current in the wire is 2 A, what is the force experienced by the wire?

A. 0.5 N

Correct B. 1 N

C. 1.5 N

D. 2 N

Correct Answer: B

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

Question 10

A particle of mass 1 kg is moving in a circular path of radius 1 m with a cons\tant speed of 2 m/s. If the particle is subjected to a centripetal force of 4 N, what is the angle between the force and the radius vector at the ins\tant when the particle is at the bottom of its path?

A. 30°

B. 45°

C. 60°

Correct D. 90°

Correct Answer: D

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

Question 11

A parallel plate capacitor has plates of area 0.04 m^2 and separation 0.02 m. The capaci\tance is 5.0 x 10^-10 F. If a potential difference of 10 V is applied across the plates, calculate the charge stored on the capacitor.

A. 2.5 x 10^-9 C

Correct B. 5.0 x 10^-9 C

C. 1.0 x 10^-8 C

D. 2.0 x 10^-8 C

Correct Answer: B

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

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. Calculate the magnitude of the force acting on the particle.

A. 6 N

B. 12 N

Correct C. 24 N

D. 48 N

Correct Answer: C

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

Question 13

A ray of light passes through a prism and is re\fracted. If the angle of incidence is 30° and the angle of re\fraction is 20°, calculate the angle of deviation.

A. 10°

Correct B. 20°

C. 30°

D. 40°

Correct Answer: B

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

Question 14

A capacitor of capaci\tance 10 μF is connected in series with a resistor of resis\tance 100 Ω. If a voltage of 20 V is applied across the circuit, calculate the current flowing through the circuit.

A. 0.2 mA

B. 0.4 mA

C. 0.6 mA

Correct D. 0.8 mA

Correct Answer: D

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

Question 15

A particle of mass 1 kg is projected at an angle of 60° to the horizontal with an initial velocity of 10 m/s. Calculate the time of flight.

A. 2 s

B. 4 s

Correct C. 6 s

D. 8 s

Correct Answer: C

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 centripetal force of 12 N, what is the magnitude of the force?

A. 10 N

Correct B. 12 N

C. 15 N

D. 20 N

Correct Answer: B

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

Question 17

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 A

C. 2.5 A

D. 3 A

Correct Answer: B

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

Question 18

A projectile is launched from the ground with an initial velocity of 20 m/s at an angle of 30° above the horizontal. What is the maximum height reached by the projectile?

A. 10 m

B. 12 m

Correct C. 15 m

D. 18 m

Correct Answer: C

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

Question 19

A quantum particle has a wave function given by ψ(x) = Ae^\( -α|x| \). What is the probability of finding the particle between x = -1 and x = 1?

A. 0.5

Correct B. 0.6

C. 0.7

D. 0.8

Correct Answer: B

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

Question 20

A circuit consists of a 9 V battery, a 2 Ω resistor, and a 3 Ω resistor connected in parallel. What is the current flowing through the 2 Ω resistor?

A. 3 A

Correct B. 4 A

C. 5 A

D. 6 A

Correct Answer: B

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

Question 21

A 2.5 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. 0.25 A

Correct B. 0.5 A

C. 1 A

D. 1.25 A

Correct Answer: B

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

Question 22

A particle of mass 0.5 kg is attached to a spring with a spring cons\tant of 100 N/m. The particle is displaced by 0.2 m from its equilibrium position and released from rest. What is the maximum velocity of the particle?

A. 0.5 m/s

B. 1 m/s

Correct C. 1.5 m/s

D. 2 m/s

Correct Answer: C

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

Question 23

A magnetic field of 0.5 T is directed perp\endicular to the plane of a circular loop of radius 0.1 m. What is the magnetic flux through the loop?

A. 0.01 Wb

Correct B. 0.02 Wb

C. 0.03 Wb

D. 0.04 Wb

Correct Answer: B

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

Question 24

A capacitor of capaci\tance 100 μF is charged to a potential difference of 10 V. What is the energy stored in the capacitor?

A. 0.01 J

Correct B. 0.1 J

C. 1 J

D. 10 J

Correct Answer: B

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

Question 25

A heat engine operates between a high-temperature reservoir at 500 K and a low-temperature reservoir at 300 K. What is the efficiency of the engine?

A. 0.5

B. 0.6

Correct C. 0.7

D. 0.8

Correct Answer: C

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