Exam Body

Year

Subject

Paper Type

POST UTME JOSEPH AYO BABALOLA UNIVERSITY 2022 Physics | Objective

Are you preparing for POST UTME JOSEPH AYO BABALOLA 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. What is the magnitude of the centripetal acceleration?

A. 8 m/s^2

B. 12 m/s^2

Correct C. 16 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 2

A 10 μF capacitor is connected in series with a 20 Ω resistor and a 120 V power source. What is the current flowing through the circuit?

A. 0.6 A

B. 0.8 A

Correct C. 1.2 A

D. 1.5 A

Correct Answer: C

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

Question 3

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. 15 m

Correct C. 20 m

D. 25 m

Correct Answer: C

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

Question 4

A 100 Ω resistor is connected in parallel with a 200 Ω resistor. What is the equivalent resis\tance of the circuit?

A. 50 Ω

Correct B. 66.67 Ω

C. 100 Ω

D. 200 Ω

Correct Answer: B

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

Question 5

A 5 kg block is attached to a horizontal, massless spring with a force cons\tant of 100 N/m. 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

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

Question 6

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 probability of finding the particle in the region $0 < x < \frac{L}{4}$?

A. 0.25

Correct B. 0.5

C. 0.75

D. 1

Correct Answer: B

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

Question 7

A parallel plate capacitor has a capaci\tance of $C = 2 \times 10^{-6} F$. The plates are separated by a dis\tance of $d = 0.01 m$. If a potential difference of $V = 10 V$ is applied across the plates, what is the charge stored on the capacitor?

Correct A. 0.02 C

B. 0.02 \times 10^{-6} C

C. 0.2 C

D. 0.2 \times 10^{-6} C

Correct Answer: A

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

Question 8

A wave of frequency $f = 100 Hz$ is traveling in the positive $x$-direction. If the wave has an amplitude of $A = 0.01 m$, what is the wavelength of the wave?

A. 0.01 m

Correct B. 0.1 m

C. 1 m

D. 10 m

Correct Answer: B

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

Question 9

A simple harmonic motion has a period of $T = 2 s$. If the amplitude of the motion is $A = 0.1 m$, what is the angular frequency of the motion?

A. 1.57 rad/s

Correct B. 3.14 rad/s

C. 6.28 rad/s

D. 12.56 rad/s

Correct Answer: B

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

Question 10

A vector $\vec{A}$ has a magnitude of $A = 5 m$ and a direction of $30^\circ$ north of east. A vector $\vec{B}$ has a magnitude of $B = 3 m$ and a direction of $60^\circ$ south of west. What is the magnitude of the resul\tant vector $\vec{R} = \vec{A} + \vec{B}$?

A. 5.83 m

B. 6.36 m

Correct C. 7.07 m

D. 8.06 m

Correct Answer: C

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. If the dielectric cons\tant of the material between the plates is 3, calculate the capaci\tance.

A. 0.01 F

Correct B. 0.02 F

C. 0.03 F

D. 0.04 F

Correct Answer: B

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

Question 12

A body of mass 2 kg is moving in a circular path with a velocity of 4 m/s. If the radius of the path is 1.5 m, calculate the centripetal force acting on the body.

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 13

A ray of light passes from air into a glass of re\fractive index 1.5. If the angle of incidence is 30°, calculate the angle of re\fraction.

Correct A. 20°

B. 30°

C. 40°

D. 50°

Correct Answer: A

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

Question 14

A gas is heated from 300 K to 400 K. If the initial volume is 2 m^3 and the final volume is 3 m^3, calculate the work done by the gas.

A. 100 J

Correct B. 200 J

C. 300 J

D. 400 J

Correct Answer: B

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

Question 15

A body is moving in a straight line with an initial velocity of 5 m/s and a final velocity of 10 m/s. If the dis\tance traveled is 20 m, calculate the acceleration of the body.

A. 0.5 m/s^2

B. 1 m/s^2

Correct C. 1.5 m/s^2

D. 2 m/s^2

Correct Answer: C

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

Question 16

A block of mass 5 kg is attached to a horizontal, massless spring with a force cons\tant of 200 N/m. The block is displaced by 0.2 m from its equilibrium position and released from rest. Assuming the block undergoes simple harmonic motion, determine the maximum speed of the block as it passes through the equilibrium position.

A. 2 m/s

B. 4 m/s

Correct C. 6 m/s

D. 8 m/s

Correct Answer: C

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

Question 17

A convex lens of focal length 20 cm is placed in contact with a concave lens of focal length -15 cm. Determine the focal length of the combined lens system.

A. 10 cm

Correct B. 15 cm

C. 20 cm

D. 25 cm

Correct Answer: B

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

Question 18

A sound wave with a frequency of 200 Hz and a speed of 340 m/s is traveling through a medium. Determine the wavelength of the sound wave.

Correct A. 1.7 m

B. 1.8 m

C. 1.9 m

D. 2.0 m

Correct Answer: A

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

Question 19

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. Determine the magnitude of the centripetal acceleration of the particle.

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 20

A light ray is incident on a plane mirror at an angle of 30°. Determine the angle of reflection.

A. 15°

Correct B. 30°

C. 45°

D. 60°

Correct Answer: B

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

Question 21

A gas is enclosed in a container with a movable piston. The gas is heated from 300 K to 400 K at cons\tant volume. What is the change in the internal energy of the gas?

Correct A. 0 J

B. 100 J

C. 200 J

D. 300 J

Correct Answer: A

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

Question 22

A block of mass 2 kg is attached to a horizontal spring with a spring cons\tant of 100 N/m. The block 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. 1.0 rad/s

Correct B. 2.0 rad/s

C. 5.0 rad/s

D. 10.0 rad/s

Correct Answer: B

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

Question 23

A parallel plate capacitor has a capaci\tance of 10 μF and is charged to a potential difference of 12 V. What is the energy stored in the capacitor?

A. 0.12 J

Correct B. 0.24 J

C. 0.36 J

D. 0.48 J

Correct Answer: B

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

Question 24

A current of 2 A flows through a resistor of 10 Ω for 5 s. What is the total energy dissipated in the resistor?

A. 20 J

B. 40 J

Correct C. 60 J

D. 80 J

Correct Answer: C

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

Question 25

A 5 kg object is moving in a circular path with a radius of 2 m at a speed of 4 m/s. What is the magnitude of the centripetal force acting on the object?

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

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