POST UTME IGBINEDION UNIVERSITY 2025 Physics | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A body is moving in a circular path with a radius of 2 m. If it completes one revolution in 4 seconds, what is its angular velocity?
A. 1.57 rad/s
B. 2.14 rad/s
C. 3.14 rad/s
D. 4.19 rad/s
Question 2
A magnetic field is produced by a current-carrying wire. If the current is increased by a factor of $3$, what happens to the magnetic field?
A. Increases by a factor of $3$
B. Increases by a factor of $9$
C. Decreases by a factor of $3$
D. Decreases by a factor of $9$
Question 3
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. 24 m/s^2
D. 48 m/s^2
Question 4
A wave has a frequency of 20 Hz and a wavelength of 0.5 m. What is its speed?
A. 10 m/s
B. 20 m/s
C. 30 m/s
D. 40 m/s
Question 5
A particle of mass 1 kg is moving in a circular path of radius 2 m with a cons\tant speed of 5 m/s. What is the magnitude of the force acting on the particle?
A. 5 N
B. 10 N
C. 15 N
D. 20 N
Question 6
A simple harmonic motion is described by the equation $x(t) = A\cos\( \omega t + \phi \)$, where $A$ is the amplitude, $\omega$ is the angular frequency, and $\phi$ is the phase angle. If the amplitude is doubled to $2A$, what is the new angular frequency $\omega_{new}$?
A. \omega
B. 2\omega
C. \frac{\omega}{2}
D. \frac{\omega}{4}
Question 7
A particle of mass $m$ is projected at an angle $\theta$ to the horizontal with an initial velocity $v_0$. If the particle experiences a cons\tant acceleration $g$ due to gravity, what is the time of flight?
A. \frac{2v_0\sin\theta}{g}
B. \frac{v_0\sin\theta}{g}
C. \frac{v_0\cos\theta}{g}
D. \frac{v_0\sin\theta}{g^2}
Question 8
A body of mass 2 kg is moving with a velocity of 5 m/s. If a force of 10 N is applied to the body for 2 seconds, what is the change in its kinetic energy?
A. 10 J
B. 20 J
C. 30 J
D. 40 J
Question 9
A wave function is given by \psi(x) = A \cdot e^{-\frac{x^2}{2a^2}}. If the wave function is normalized, what is the value of A?
A. 1/\sqrt{\pi a}
B. 1/\sqrt{2a}
C. 1/\sqrt{a}
D. 1/\sqrt{2a^2}
Question 10
A wave has a frequency of 50 Hz and a wavelength of 0.2 m. What is the speed of the wave?
A. 10 m/s
B. 20 m/s
C. 30 m/s
D. 40 m/s
Question 11
A particle of mass $m$ is moving in a circular path of radius $r$ with a cons\tant speed $v$. The particle experiences a centripetal force $F_c$ given by $F_c = \frac{mv^2}{r}$. If the particle's speed is doubled to $2v$, what is the new centripetal force $F_{c,new}$?
A. \frac{4mv^2}{r}
B. \frac{2mv^2}{r}
C. \frac{mv^2}{2r}
D. \frac{mv^2}{4r}
Question 12
A block of mass 5 kg is placed on a frictionless surface and attached to a spring with a spring cons\tant of 200 N/m. If the block is displaced by 0.1 m from its equilibrium position and released, what is its maximum speed?
A. 2.0 m/s
B. 4.0 m/s
C. 6.0 m/s
D. 8.0 m/s
Question 13
A 100 μF capacitor is connected in series with a 200 Ω resistor and a 5 V battery. If the switch is closed at time t = 0, what is the current in the circuit at time t = 10 ms?
A. 0.025 A
B. 0.05 A
C. 0.1 A
D. 0.2 A
Question 14
A ray of light passes through a prism with an angle of incidence of $\theta_i$ and an angle of re\fraction of $\theta_r$. If the prism has a re\fractive index of $n$, what is the angle of deviation?
A. \arc\sin\( \sin\theta_i \) - \arc\sin\( \frac{n\sin\theta_i}{n} \)
B. \arc\sin\( \sin\theta_i \) + \arc\sin\( \frac{n\sin\theta_i}{n} \)
C. \arc\sin\( \sin\theta_i \) - \arc\sin\( \sin\theta_r \)
D. \arc\sin\( \sin\theta_i \) + \arc\sin\( \sin\theta_r \)
Question 15
A particle of mass 2 kg is moving in a circular path of radius 5 m with a speed of 10 m/s. What is the magnitude of the centripetal force acting on the particle?
A. 20 N
B. 40 N
C. 60 N
D. 80 N

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