POST UTME MOUNTAIN TOP UNIVERSITY 2025 Physics | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A ray of light passes from air into a glass slab of re\fractive index 1.5. If the angle of incidence is 30°, what is the angle of re\fraction?
A. \( 20° \ \)
B. \( 30° \ \)
C. \( 40° \ \)
D. \( 50° \ \)
Question 2
A particle of mass 2 kg is moving in a circular path of radius 3 m under the influence of a centripetal force of 10 N. If the particle's velocity is 5 m/s, what is its angular velocity?
A. \( \frac{\sqrt{10}}{3} \ \) rad/s
B. \( \frac{\sqrt{10}}{2} \ \) rad/s
C. \( \frac{\sqrt{10}}{6} \ \) rad/s
D. \( \frac{\sqrt{10}}{9} \ \) rad/s
Question 3
A block of mass 5 kg is attached to a horizontal spring with a force cons\tant of 200 N/m. If the block is displaced by 2 m from its equilibrium position and released from rest, what is its maximum velocity?
A. \( \sqrt{400} \ \) m/s
B. \( \sqrt{200} \ \) m/s
C. \( \sqrt{100} \ \) m/s
D. \( \sqrt{50} \ \) m/s
Question 4
A particle of mass 0.5 kg is moving in a circular path with a radius of 2 m. If the particle has a speed of 4 m/s, what is the centripetal force acting on it?
A. 10 N
B. 20 N
C. 30 N
D. 40 N
Question 5
A 100 W light bulb is connected to a 220 V power source. What is the current drawn by the bulb?
A. 0.5 A
B. 1 A
C. 1.5 A
D. 2 A
Question 6
A 2.5 V battery is connected in series with a 5 ohm resistor and a 10 ohm resistor. What is the total resis\tance in the circuit?
A. 10 ohms
B. 12.5 ohms
C. 15 ohms
D. 20 ohms
Question 7
A wave with a frequency of 50 Hz and a wavelength of 2 m is traveling through a medium. What is the speed of the wave?
A. 100 m/s
B. 200 m/s
C. 300 m/s
D. 400 m/s
Question 8
A car travels from point A to point B with a cons\tant acceleration of 2 m/s^2. If the car starts from rest and covers a dis\tance of 10 m, what is its final velocity?
A. \( 2 \sqrt{10} \ \) m/s
B. \( \sqrt{10} \ \) m/s
C. \( 2 \sqrt{5} \ \) m/s
D. \( \sqrt{5} \ \) m/s
Question 9
A particle of mass 3 kg is moving in a circular path of radius 4 m under the influence of a centripetal force of 15 N. If the particle's velocity is 6 m/s, what is its angular velocity?
A. \( \frac{\sqrt{15}}{4} \ \) rad/s
B. \( \frac{\sqrt{15}}{2} \ \) rad/s
C. \( \frac{\sqrt{15}}{8} \ \) rad/s
D. \( \frac{\sqrt{15}}{12} \ \) rad/s
Question 10
A gas at a pressure of 2 atm and a temperature of 300 K is heated to a temperature of 400 K. What is the new pressure of the gas?
A. 2.5 atm
B. 3 atm
C. 3.5 atm
D. 4 atm

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