POST UTME AL-HIKMAH UNIVERSITY 2024 Physics | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A wave has a frequency of 50 Hz and a wavelength of 2 m. What is the speed of the wave?
A. 100 m/s
B. 200 m/s
C. 250 m/s
D. 300 m/s
Question 2
A particle of mass 1 kg is moving in a circular path of radius 2 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 3
A parallel plate capacitor has a capaci\tance of 10 μF. If a potential difference of 50 V is applied across it, what is the charge stored on each plate?
A. 0.5 C
B. 5 C
C. 500 μC
D. 5000 μC
Question 4
A sound wave has a frequency of 200 Hz and a speed of 340 m/s. Calculate the wavelength of the sound wave.
A. 1.7 m
B. 1.8 m
C. 1.9 m
D. 2.0 m
Question 5
A particle of mass 2 kg is moving in a circular path with a speed of 5 m/s. If the radius of the circle is 3 m, what is the centripetal force acting on it?
A. 10 N
B. 20 N
C. 30 N
D. 40 N
Question 6
A projectile is launched from the ground with an initial velocity of $20$ m/s at an angle of $60^circ$ above the horizontal. Find the maximum height reached by the projectile.
A. \( 10 \text{ m} \)
B. \( 15 \text{ m} \)
C. \( 20 \text{ m} \)
D. \( 25 \text{ m} \)
Question 7
A \tank contains 1000 L of water at a temperature of $20^circ$C. A metal block of mass 5 kg is submerged in the water. Find the change in temperature of the water after 10 minutes.
A. \( 0.5^circ \text{C} \)
B. \( 1^circ \text{C} \)
C. \( 1.5^circ \text{C} \)
D. \( 2^circ \text{C} \)
Question 8
A simple harmonic motion has a frequency of 5 Hz and an amplitude of 2 m. If the particle is at its maximum displacement at t = 0 s, calculate the displacement at t = 1 s.
A. 1.0 m
B. 1.5 m
C. 2.0 m
D. 2.5 m
Question 9
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°
C. 40°
D. 50°
Question 10
A parallel beam of light is incident on a glass slab of thickness $t$ and re\fractive index $mu$. The angle of incidence is $45^circ$. Find the angle of re\fraction.
A. \( 30^circ \)
B. \( 45^circ \)
C. \( 60^circ \)
D. \( 90^circ \)
Question 11
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. 2 m/s^2
B. 4 m/s^2
C. 6 m/s^2
D. 8 m/s^2
Question 12
A wave has a frequency of 100 Hz and a wavelength of 2 m. If the wave is traveling in the positive x-direction, what is the direction of the particle velocity?
A. in the positive x-direction
B. in the negative x-direction
C. perp\endicular to the x-axis
D. in the z-direction
Question 13
A body of mass 5 kg is moving with a velocity of 10 m/s. If it is subjected to a force of 20 N, what is the change in its kinetic energy?
A. 50 J
B. 100 J
C. 150 J
D. 200 J
Question 14
A capacitor has a capaci\tance of 10 μF and is connected to a 12 V battery. If the capacitor is initially uncharged, what is the charge on the capacitor after 5 minutes?
A. 0.12 C
B. 0.24 C
C. 0.36 C
D. 0.48 C
Question 15
A 5 kg block is moving at 10 m/s on a frictionless surface. If a force of 20 N is applied to the block, what is its acceleration?
A. 0.5 m/s^2
B. 1 m/s^2
C. 2 m/s^2
D. 5 m/s^2

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