POST UTME BSU 2019 Physics | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A magnetic field of strength 0.5 T is directed perp\endicular to a wire of length 2 m and cross-sectional area 0.1 m^2. What is the force exerted on the wire?
A. 0.10 N
B. 0.20 N
C. 0.30 N
D. 0.40 N
Question 2
A particle of mass 2 kg is moving in a circular path with a cons\tant speed of 4 m/s. If the radius of the circular path is 3 m, calculate the magnitude of the centripetal acceleration.
A. 12 m/s^2
B. 16 m/s^2
C. 20 m/s^2
D. 24 m/s^2
Question 3
A capacitor of capaci\tance 10 μF is connected in parallel with a 20 μF capacitor. What is the equivalent capaci\tance?
A. 10 μF
B. 15 μF
C. 20 μF
D. 30 μF
Question 4
A projectile is launched from the ground with an initial velocity of 20 m/s at an angle of 60° above the horizontal. If air resis\tance is neglected, what is the maximum height reached by the projectile?
A. 10 m
B. 15 m
C. 20 m
D. 25 m
Question 5
A block of mass 5 kg is placed on a frictionless surface. If a force of 20 N is applied to the block, what is the acceleration of the block?
A. 2 m/s^2
B. 4 m/s^2
C. 6 m/s^2
D. 8 m/s^2
Question 6
A wave has a frequency of $f = 10 Hz$ and a wavelength of $\lambda = 2 m$. What is the speed of the wave?
A. 20 m/s
B. 40 m/s
C. 60 m/s
D. 80 m/s
Question 7
A spring has a spring cons\tant of 100 N/m. If a force of 50 N is applied to the spring, what is the displacement of the spring?
A. 0.5 m
B. 1 m
C. 1.5 m
D. 2 m
Question 8
A 2 kg object is moving with a velocity of 5 m/s. If the object experiences a force of 10 N, calculate the acceleration of the object.
A. 0.5 m/s^2
B. 1 m/s^2
C. 2 m/s^2
D. 5 m/s^2
Question 9
A parallel plate capacitor has a capaci\tance of 2.5 μF. If the potential difference between the plates is 10 V, what is the charge on the positive plate?
A. 25 μC
B. 50 μC
C. 75 μC
D. 100 μC
Question 10
A simple harmonic motion has a period of $T = 2 s$. If the amplitude of the motion is $A = 5 cm$, what is the angular frequency $\omega$?
A. 1.57 rad/s
B. 3.14 rad/s
C. 6.28 rad/s
D. 10 rad/s
Question 11
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 ratio of the final pressure to the initial pressure?
A. 1.33
B. 2.00
C. 1.00
D. 0.75
Question 12
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 acceleration of 2 m/s^2, what is the magnitude of the force acting on the particle?
A. 8 N
B. 10 N
C. 12 N
D. 16 N
Question 13
A 1000(Omega) resistor is connected in series with a 20(mu)F capacitor across a 200V AC supply. If the frequency of the supply is 50Hz, calculate the impedance of the circuit.
A. ( 1000Omega )
B. ( 2000Omega )
C. ( 5000Omega )
D. ( 10000Omega )
Question 14
A block of mass 2kg is placed on a horizontal surface. If the coefficient of static friction between the block and the surface is 0.5, calculate the maximum force that can be applied to the block without cau\sing it to move.
A. ( 10N )
B. ( 20N )
C. ( 30N )
D. ( 40N )
Question 15
A capacitor consists of two parallel plates, each of area 0.04 m^2, separated by a dis\tance of 0.002 m. If the capaci\tance is 8 nF, calculate the potential difference between the plates when a charge of 0.0002 C is stored on each plate.
A. 2 V
B. 4 V
C. 6 V
D. 8 V

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