Physics MCQs
Physics MCQs are essential for aspirants preparing for competitive exams such as CSS, PMS, FPSC, NTS, and university-level tests. Our carefully curated collection of Physics MCQs covers fundamental and advanced topics like mechanics, thermodynamics, electromagnetism, optics, waves, nuclear physics, and modern physics. These multiple-choice questions are structured to test both conceptual understanding and problem-solving skills, making them ideal for students of FSc, BSc, and engineering backgrounds. Whether you're revising for your board exams, entrance tests, or job-based assessments, our Physics MCQs offer a solid foundation and real-time practice to boost your confidence and accuracy. Each question is updated and follows the latest exam trends in Pakistan. This section serves as a free, self-paced tool to strengthen your physics knowledge and perform excellently in any science-related test.
Q: Speed of light in vacuum?
A) 3 × 10^6 m/s
B) 3 × 10^8 m/s
C) 1.5 × 10^6 m/s
D) 1.5 × 10^8 m/s
✅ Correct Answer: B
Explanation: Light travels at approximately 300,000,000 meters per second in a vacuum.
Q: SI unit of force?
A) Pascal
B) Watt
C) Newton
D) Joule
✅ Correct Answer: C
Explanation: Newton is the SI unit used to measure force.
Q: Energy stored in a stretched spring?
A) Gravitational energy
B) Elastic potential energy
C) Thermal energy
D) Kinetic energy
✅ Correct Answer: B
Explanation: A stretched spring stores elastic potential energy.
Q: Function of a fuse in a circuit?
A) Break circuit in overload
B) Store charge
C) Increase voltage
D) Reduce current
✅ Correct Answer: A
Explanation: A fuse protects devices by breaking the circuit if the current exceeds a safe level.
Q: Acceleration due to gravity on Earth?
A) 12 m/s²
B) 10.5 m/s²
C) 8.9 m/s²
D) 9.8 m/s²
✅ Correct Answer: D
Explanation: The standard acceleration due to gravity on Earth is 9.8 m/s².
Q: Instrument to measure current?
A) Hygrometer
B) Thermometer
C) Ammeter
D) Voltmeter
✅ Correct Answer: C
Explanation: Ammeter is used to measure electric current in a circuit.
Q: Type of lens used in a magnifying glass?
A) Concave
B) Plano-concave
C) Convex
D) Cylindrical
✅ Correct Answer: C
Explanation: Convex lenses converge light rays to magnify images.
Q: Reason for rainbow formation?
A) Refraction and dispersion
B) Diffraction
C) Refraction
D) Reflection
✅ Correct Answer: A
Explanation: Rainbows form due to refraction and dispersion of light in water droplets.
Q: Unit of power?
A) Joule
B) Ohm
C) Newton
D) Watt
✅ Correct Answer: D
Explanation: Watt is the unit of power, equivalent to one joule per second.
Q: Color with highest energy in visible spectrum?
A) Green
B) Blue
C) Violet
D) Red
✅ Correct Answer: C
Explanation: Violet has the shortest wavelength and highest energy.