Exam Body

Year

Subject

Paper Type

POST UTME CALEB UNIVERSITY 2020 Physics | Objective

Prepare for your exams with POST UTME CALEB UNIVERSITY questions? Reviewing past/model questions is one of the most effective ways to guarantee a high score. This practice hub features authentic 2020 Physics (Objective) questions designed to simulate the real exam environment.

Practice these randomly selected questions to test your readiness.

Question 1 View Details

A radioactive sample of Δₗ emits Δₗα particles with a half-life of 5.27 years. If the initial activity is 1.0 µCi, what is the activity after 10.54 years?

Correct A. 0.125 µCi

B. 0.25 µCi

C. 0.5 µCi

D. 1.0 µCi

Correct Answer: A

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

Question 2 View Details

A gas at 300 K and 1 atm expands to 2 atm. What is the new temperature in Kelvin?

A. 300 K

Correct B. 400 K

C. 600 K

D. 800 K

Correct Answer: B

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

Question 3 View Details

A projectile is launched from the ground with an initial velocity of 20 m/s at an angle of 60° above the horizontal. What is the maximum height reached by the projectile?

A. 10 m

B. 20 m

Correct C. 30 m

D. 40 m

Correct Answer: C

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

Question 4 View Details

A convex lens of focal length 20 cm forms an image of an object at a dis\tance of 30 cm. What is the magnification of the lens?

A. -1

Correct B. -0.5

C. 0.5

D. 1

Correct Answer: B

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

Question 5 View Details

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

A. 20°

B. 30°

Correct C. 40°

D. 50°

Correct Answer: C

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

Question 6 View Details

A block of mass 2 kg is attached to a horizontal, massless spring with a force cons\tant of 100 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, calculate the maximum speed of the block.

A. 2 m/s

Correct B. 4 m/s

C. 6 m/s

D. 8 m/s

Correct Answer: B

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

Question 7 View Details

A parallel plate capacitor consists of two plates, each of area 0.1 m^2, separated by a dis\tance of 0.01 m. The space between the plates is filled with a dielectric material of dielectric cons\tant 2. The capacitor is connected to a battery of emf 10 V. Calculate the capaci\tance of the capacitor.

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 8 View Details

A current of 5 A flows through a resistor of resis\tance 10 ohms. Calculate the power dissipated by the resistor.

Correct A. 25 W

B. 50 W

C. 75 W

D. 100 W

Correct Answer: A

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

Question 9 View Details

A particle of mass 1 kg is moving in a circular path of radius 2 m with a cons\tant speed of 4 m/s. Calculate the magnitude of the force acting on the particle.

A. 8 N

Correct B. 16 N

C. 24 N

D. 32 N

Correct Answer: B

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

Question 10 View Details

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

Correct A. 0.01 Wb

B. 0.02 Wb

C. 0.03 Wb

D. 0.04 Wb

Correct Answer: A

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

Question 11 View Details

A gas is heated at cons\tant volume. If the initial temperature is 300 K and the final temperature is 500 K, calculate the ratio of the final pressure to the initial pressure.

Correct A. 1.67

B. 2.00

C. 3.33

D. 4.00

Correct Answer: A

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

Question 12 View Details

A particle moves in a circular path with a cons\tant speed of 5 m/s. If the radius of the circle is 2 m, calculate the magnitude of the acceleration of the particle.

A. 1.25 m/s^2

B. 2.50 m/s^2

Correct C. 5.00 m/s^2

D. 10.00 m/s^2

Correct Answer: C

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

Question 13 View Details

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 1 A, calculate the potential difference across the 6 Ω resistor.

A. 6 V

Correct B. 8 V

C. 10 V

D. 12 V

Correct Answer: B

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

Question 14 View Details

A beam 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 15 View Details

A simple harmonic motion has a maximum displacement of 2 m and a period of 4 s. If the initial displacement is 1 m, calculate the velocity at time t = 2 s.

A. 1.33 m/s

Correct B. 2.00 m/s

C. 2.67 m/s

D. 3.33 m/s

Correct Answer: B

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

Question 16 View Details

A monochromatic light source of wavelength 500 nm is incident on a double-slit apparatus. The dis\tance between the slits is 0.5 mm. If the screen is placed 1 m away from the slits, what is the dis\tance between the central maximum and the first minimum?

A. 1.5 mm

Correct B. 2.5 mm

C. 3.5 mm

D. 4.5 mm

Correct Answer: B

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

Question 17 View Details

A body 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 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 18 View Details

A container of volume 0.5 m^3 is filled with a gas at a pressure of 2 atm. If the temperature is increased by 20 K, what is the new pressure?

A. 2.5 atm

Correct B. 3.5 atm

C. 4.5 atm

D. 5.5 atm

Correct Answer: B

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

Question 19 View Details

A light ray passes through a prism of angle 30° and is re\fracted at an angle of 20°. What is 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 20 View Details

A body of mass 5 kg is moving in a straight line with an initial velocity of 10 m/s. If it experiences a cons\tant acceleration of 2 m/s^2, what is its velocity after 5 seconds?

A. 25 m/s

B. 30 m/s

Correct C. 35 m/s

D. 40 m/s

Correct Answer: C

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

Question 21 View Details

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. 1.0 x 10^-9 F

B. 2.0 x 10^-9 F

Correct C. 3.0 x 10^-9 F

D. 4.0 x 10^-9 F

Correct Answer: C

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

Question 22 View Details

A gas occupies a volume of 2.5 L at a pressure of 1.5 atm. If the temperature is increased to 300 K, what is the new volume?

A. 3.0 L

Correct B. 3.5 L

C. 4.0 L

D. 4.5 L

Correct Answer: B

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

Question 23 View Details

A particle moves 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. 0.5 rad/s

B. 1.0 rad/s

Correct C. 1.5 rad/s

D. 2.0 rad/s

Correct Answer: C

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

Question 24 View Details

A simple harmonic motion has an amplitude of 5 m and a frequency of 2 Hz. If the particle is at its equilibrium position at t = 0, what is its position at t = 1 s?

A. -5 m

B. -2 m

Correct C. 2 m

D. 5 m

Correct Answer: C

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

Question 25 View Details

A vector has a magnitude of 3 m and makes an angle of 60° with the x-axis. If it is projected onto the y-axis, what is its magnitude?

A. 1.5 m

Correct B. 2.0 m

C. 2.5 m

D. 3.0 m

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