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Physics MCQs

Practice Physics multiple-choice questions for Riphah International University competitive exams. Each question includes the correct answer and a short explanation, and past-paper questions are marked so you can revise both repeated and fresh material in one place.

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Gauss's Law
Ohm's Law
Coulomb's Law
Ampere's Law
ErklärungCoulomb's Law defines the electrostatic force between two stationary point charges.
Joule
Watt
Newton
Pascal
ErklärungPower is defined as energy per unit time, and its SI unit is the Watt (W).
Increasing
Decreasing
Zero
Constant and non-zero
ErklärungAcceleration is defined as the rate of change of velocity. If velocity is constant, the change is zero.
Violet
Green
Yellow
Red
ErklärungIn the visible spectrum, red light has the longest wavelength and the lowest frequency.
60 kg
10 kg
360 kg
6 kg
ErklärungWeight is mass multiplied by gravity. Since lunar gravity is 1/6th of Earth's, the weight effectively reduces to 60/6 = 10.
Speed
Wavelength
Frequency
Amplitude
ErklärungThe frequency of a wave is determined by the source and remains constant regardless of the medium it travels through.
mv
m^2v
0.5 * m * v^2
m * v^2
ErklärungThe standard formula for kinetic energy is KE = 1/2 * mass * velocity squared.
Reflection
Refraction
Diffraction
Polarization
ErklärungRefraction is the change in direction of a wave passing from one medium to another caused by its change in speed.
Volt
Ampere
Ohm
Watt
ErklärungThe Ohm is the SI unit of electrical resistance, named after Georg Simon Ohm.
3 x 10^5 m/s
3 x 10^8 m/s
3 x 10^10 m/s
3 x 10^6 m/s
ErklärungThe speed of light in a vacuum is defined as exactly 299,792,458 meters per second, roughly 300,000 km/s.
Joule
Watt
Newton
Pascal
ErklärungPower is defined as work done per unit time, and its SI unit is the Watt.
Positive
Negative
Zero
Variable
ErklärungAcceleration is the rate of change of velocity. If velocity is constant, the rate of change is zero.
Ohm's Law
Coulomb's Law
Faraday's Law
Kirchhoff's Law
ErklärungCoulomb's Law describes the electrostatic force between charged particles.
Ampere
Ohm
Volt
Watt
ErklärungElectric potential difference (voltage) is measured in Volts.
Electron
Proton
Neutron
Positron
ErklärungNeutrons are subatomic particles found in the nucleus that carry no electrical charge.
Mass
Velocity
Extension
Time
ErklärungHooke's Law states that the force needed to extend or compress a spring is proportional to that distance (F=kx).
Resistor
Inductor
Capacitor
Transistor
ErklärungA capacitor is a passive two-terminal component that stores electrical energy in an electric field.
0.5 Hz
1 Hz
2 Hz
5 Hz
ErklärungFrequency = 1 / Period. Therefore, 1 / 0.5 = 2 Hz.
50 J
2 J
15 J
5 J
ErklärungWork = Force x Displacement. 10N * 5m = 50 Joules.
It decreases
It increases
It remains constant
It becomes zero
ErklärungIn metals, increased temperature causes greater lattice vibration, which hinders electron flow, increasing resistance.
Pascal's Principle
Bernoulli's Principle
Archimedes' Principle
Newton's First Law
ErklärungBernoulli's principle states that faster-moving air creates lower pressure, resulting in lift on the wing's surface.

Frequently Asked Questions

Are these Physics MCQs free?

Yes. Every Physics MCQ on this page is free to practice, including the correct answer and explanation.

Do these include past-paper questions?

Yes — questions sourced from past papers are clearly marked with a "Past Paper" badge, alongside fresh practice questions.

Which exams do these Physics MCQs help with?

They are aimed at Riphah International University and related Pakistani competitive exams that test Physics.

How should I practice subject-wise MCQs?

Attempt each question first, then reveal the answer and read the explanation. Short, focused sessions on one subject work better than long unstructured reading.

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