POST UTME BOWEN UNIVERSITY 2020 Physics | Objective

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 of the particle?
A. 4 m/s^2
B. 8 m/s^2
C. 12 m/s^2
D. 16 m/s^2
Question 2
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 acceleration of the particle?
A. 6 m/s^2
B. 12 m/s^2
C. 18 m/s^2
D. 24 m/s^2
Question 3
A wave has a frequency of 50 Hz and a wavelength of 0.2 m. What is the speed of the wave?
A. 5 m/s
B. 10 m/s
C. 15 m/s
D. 20 m/s
Question 4
A ray 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°
C. 40°
D. 50°
Question 5
A gas is enclosed in a container of volume 2 m^3 at a pressure of 1 atm. If the temperature is increased by 10°C, what is the new pressure of the gas?
A. 1.2 atm
B. 1.5 atm
C. 2.0 atm
D. 2.5 atm
Question 6
A 10 μF capacitor is connected in parallel with a 20 μF capacitor. If a voltage of 50 V is applied across the combination, what is the equivalent capaci\tance?
A. 10 μF
B. 20 μF
C. 30 μF
D. 40 μF
Question 7
A particle of mass 2 kg is moving in a circular path of radius 3 m with a speed of 4 m/s. What is the magnitude of the centripetal force acting on the particle?
A. 10 N
B. 20 N
C. 30 N
D. 40 N
Question 8
A wave has a frequency of 50 Hz and a wavelength of 2 m. What is the speed of the wave?
A. 50 m/s
B. 100 m/s
C. 150 m/s
D. 200 m/s
Question 9
A radioactive sample has a half-life of 2 days. If the initial activity is 100 Bq, what is the activity after 4 days?
A. 12.5 Bq
B. 25 Bq
C. 50 Bq
D. 100 Bq
Question 10
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. 15 m/s
D. 20 m/s
Question 11
A block of mass 5 kg is moving with a velocity of 10 m/s. If a force of 20 N is applied to the block, what is the acceleration of the block?
A. 4 m/s^2
B. 8 m/s^2
C. 12 m/s^2
D. 16 m/s^2
Question 12
A gas is heated from 20°C to 50°C. If the initial volume is 2 L, what is the final volume?
A. 4 L
B. 6 L
C. 8 L
D. 10 L
Question 13
A magnetic field of strength 0.5 T is directed along the z-axis. If a current of 2 A is flowing in a wire loop of radius 0.2 m, what is the magnitude of the magnetic moment of the loop?
A. 0.1 π A m^2
B. 0.125 π A m^2
C. 0.15 π A m^2
D. 0.2 π A m^2
Question 14
A radioactive sample has an initial activity of 100 Bq. After 2 hours, the activity decreases to 50 Bq. What is the half-life of the sample?
A. 1 hour
B. 2 hours
C. 4 hours
D. 6 hours
Question 15
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 acceleration of the particle?
A. 10 m/s^2
B. 12 m/s^2
C. 15 m/s^2
D. 20 m/s^2

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: