SSC CGL Previous Year Physics Questions: Physics is one of the important science subjects that are asked in competitive exams like SSC CHSL, SSC CGL and Railways. In such exams, there are around 4-5 questions that are asked from the General Science section. Aspirants can score easily by being aware of this topic.
Common Mistakes Students Make While Preparing Physics for SSC CGL
Physics questions in SSC exams are usually straightforward, but many students lose marks due to small and avoidable mistakes. Here are some common errors to watch out for:
• Not remembering SI units correctly for basic quantities like force, work, and power
• Confusing similar concepts such as reflection vs refraction, or mass vs weight
• Ignoring numerical values and units in questions, especially in speed or energy-based problems
• Trying to memorize formulas without understanding their application
• Mixing up the use of concave and convex mirrors or lenses
• Skipping topics like sound, electricity, or modern physics assuming they are less important
• Not solving enough previous year questions to understand the exam pattern
• Leaving conceptual questions from mechanics or light due to fear of complexity
• Making calculation mistakes in simple questions due to lack of practice
Tips to Score Well in Physics for SSC CGL 2025
Scoring well in Physics for SSC CGL and similar exams doesn’t require advanced problem-solving but demands strong conceptual understanding and regular practice. Here are some detailed tips to help you prepare effectively:
- Start with the basics: Build a clear understanding of fundamental concepts like motion, force, energy, light, sound, and electricity. These are frequently asked in SSC exams.
- Learn all SI units and measurements: Questions on units are common. Make sure you know units of force (newton), power (watt), energy (joule), current (ampere), resistance (ohm), and acceleration (m/s²), among others.
- Understand instead of memorizing: Many students try to rote-learn formulas and definitions without understanding them. Instead, relate formulas to real-life examples or the logic behind them to retain them better.
- Prepare topic-wise notes: Maintain short notes for each topic with key formulas, definitions, and shortcuts. Keep them handy for quick revision before the exam.
- Practice previous year questions: SSC often repeats or slightly modifies earlier questions. Solving papers from the last 5–7 years gives you a strong idea of what to expect.
- Focus on high-weightage topics: Pay extra attention to topics like motion, light, sound, electricity, and thermodynamics, as they appear more frequently.
- Don’t skip conceptual theory: Theory-based questions like types of lenses, laws of reflection, or principle of electric motor are direct and easy if understood well.
- Work on your speed and accuracy: Practice solving MCQs within a time limit. This helps improve your confidence and reduces the chance of making silly mistakes.
- Revise regularly: Without revision, it’s easy to forget formulas or key concepts. Set a weekly revision schedule and stick to it.
- Use simple visuals or diagrams: For topics like ray diagrams, circuits, or reflection, drawing simple sketches while practicing can make concepts clearer and easier to remember.
- Avoid using shortcuts blindly: Only use a shortcut if you fully understand the concept behind it. Relying on tricks without clarity can lead to confusion.
- Stay updated with mock tests: Take full-length mock tests in exam conditions to simulate real exam pressure. Analyze your mistakes and work on weak areas.
SSC CGL 2025 Physics Questions
Here you will find important Physics questions based on SSC CGL and other government exam trends. These questions will help you revise key topics like motion, light, sound, electricity, and modern physics for the upcoming exams.
Q1. What is the SI unit of Force?
A) Newton
B) Joule
C) Watt
D) Pascal
Correct Answer: A
Q2. Which law explains the relationship between voltage, current, and resistance?
A) Ohm’s Law
B) Newton’s Law
C) Hooke’s Law
D) Boyle’s Law
Correct Answer: A
Q3. Which device is used to measure atmospheric pressure?
A) Thermometer
B) Barometer
C) Ammeter
D) Hygrometer
Correct Answer: B
Q4. Which mirror is used in vehicle headlights?
A) Concave
B) Convex
C) Plane
D) Cylindrical
Correct Answer: A
Q5. What is the speed of light in vacuum?
A) 3 × 10⁵ m/s
B) 3 × 10⁶ m/s
C) 3 × 10⁷ m/s
D) 3 × 10⁸ m/s
Correct Answer: D
Q6. What is the unit of electrical resistance?
A) Ohm
B) Ampere
C) Volt
D) Watt
Correct Answer: A
Q7. The working principle of an electric generator is based on:
A) Electromagnetic induction
B) Thermal conduction
C) Nuclear fusion
D) Photoelectric effect
Correct Answer: A
Q8. What is the gravitational acceleration on the surface of Earth?
A) 8.9 m/s²
B) 9.8 m/s²
C) 10.2 m/s²
D) 11.5 m/s²
Correct Answer: B
Q9. Which property of light causes a pencil to appear bent in water?
A) Reflection
B) Refraction
C) Diffraction
D) Dispersion
Correct Answer: B
Q10. Which wave is used in radar systems?
A) Microwaves
B) UV rays
C) Infrared rays
D) Gamma rays
Correct Answer: A
Q11. What is measured by a voltmeter?
A) Resistance
B) Voltage
C) Current
D) Power
Correct Answer: B
Q12. Which instrument is used to measure current?
A) Voltmeter
B) Galvanometer
C) Ammeter
D) Hygrometer
Correct Answer: C
Q13. Which of the following is a vector quantity?
A) Speed
B) Work
C) Velocity
D) Distance
Correct Answer: C
Q14. Sound travels fastest in:
A) Air
B) Water
C) Vacuum
D) Steel
Correct Answer: D
Q15. Which phenomenon proves the wave nature of light?
A) Reflection
B) Refraction
C) Interference
D) Polarisation
Correct Answer: C
Q16. What is the cause of tides on Earth?
A) Earth’s rotation
B) Moon’s gravity
C) Ocean currents
D) Solar wind
Correct Answer: B
Q17. Which color of light has the shortest wavelength?
A) Red
B) Green
C) Blue
D) Violet
Correct Answer: D
Q18. What is the energy stored in a body due to its position called?
A) Kinetic energy
B) Potential energy
C) Heat energy
D) Thermal energy
Correct Answer: B
Q19. Who discovered the laws of motion?
A) Newton
B) Einstein
C) Galileo
D) Faraday
Correct Answer: A
Q20. Which part of the eye controls the amount of light entering it?
A) Retina
B) Iris
C) Cornea
D) Lens
Correct Answer: B
Q21. What type of lens is used to correct short-sightedness?
A) Convex
B) Concave
C) Plane
D) Bifocal
Correct Answer: B
Q22. What happens to pressure when the area is reduced and force is constant?
A) Increases
B) Decreases
C) Remains same
D) Doubles
Correct Answer: A
Q23. Which device converts chemical energy into electrical energy?
A) Motor
B) Generator
C) Battery
D) Transformer
Correct Answer: C
Q24. Which metal is used in making filament of electric bulbs?
A) Copper
B) Aluminum
C) Tungsten
D) Iron
Correct Answer: C
Q25. The unit of frequency is:
A) Decibel
B) Hertz
C) Ohm
D) Watt
Correct Answer: B
Q26. What is the unit of work done?
A) Watt
B) Volt
C) Joule
D) Ampere
Correct Answer: C
Q27. What type of image is formed by a plane mirror?
A) Real and inverted
B) Real and erect
C) Virtual and erect
D) Virtual and inverted
Correct Answer: C
Q28. Which gas is used in fluorescent lamps?
A) Neon
B) Argon
C) Hydrogen
D) Helium
Correct Answer: B
Q29. What is the source of energy in a nuclear reactor?
A) Chemical reaction
B) Nuclear fission
C) Nuclear fusion
D) Combustion
Correct Answer: B
Q30. Which principle is used in hydraulic brakes?
A) Archimedes’ principle
B) Pascal’s law
C) Newton’s third law
D) Hooke’s law
Correct Answer: B
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SSC CGL Physics Questions – FAQs’
Ans. In the General Science section, typically 4–5 questions are from Physics, especially in Tier 1. The questions are factual and concept-based.
Ans. High-weightage topics include:
Laws of motion
Work, power, and energy
Light and optics (lenses, mirrors)
Electricity
Sound
Units and measurements
Modern Physics
Ans. Tier 2 focuses more on Quant and English, but basic science-based questions may appear in Tier 2 General Awareness if pattern changes slightly.
Ans: Practice PYQs, understand concepts, and revise formulas regularly.
Ans: Focus on PYQs, short notes, and weekly mock practice.
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