Physics is the subject where JEE Main scores vary the most. Students who are comfortable with it can finish the section quickly and accurately. Students who are not often lose time on it that they needed for Chemistry and Maths. The way to get comfortable is not to read more theory but to study the chapters in the right order and solve the right kind of questions.
How the paper is set
In recent sessions, each subject in JEE Main has had 25 questions: 20 multiple-choice and 5 numerical-value questions, with 4 marks for a correct answer and 1 mark deducted for a wrong one. Always check the latest NTA information bulletin, because details can change from year to year.
Group 1: chapters to master first
These chapters appear in almost every paper and support the rest of the syllabus:
- Kinematics and laws of motion: the language of all of mechanics.
- Work, energy and power; centre of mass and collisions.
- Rotational motion: difficult, but it appears regularly, so it is worth the effort.
- Electrostatics, current electricity and capacitors.
- Magnetic effects of current and electromagnetic induction.
- Modern physics: photoelectric effect, atoms, nuclei. Short chapters with direct, formula-based questions.
Group 2: high-return chapters
These take less time and often give direct questions:
- Units, dimensions and errors in measurement.
- Ray optics and wave optics.
- Semiconductors and electronic devices. Logic gates and diodes are largely conceptual.
- Thermodynamics and kinetic theory of gases.
- Properties of matter: elasticity, fluids, surface tension.
Group 3: complete for full coverage
Gravitation, oscillations and waves, alternating current, electromagnetic waves and the experimental-skills topics. Do not leave them out completely: one or two questions from each can make the difference between two percentiles.
How to study a Physics chapter
- Concept first. Understand where each formula comes from. Derivations help you remember when a formula applies and when it does not.
- Solved examples. Work through them with the solution covered.
- Graded practice. 20 easy, 20 medium and 10 hard questions. Do not jump straight to the hard ones.
- Previous-year questions. Solve every JEE Main question from that chapter. This shows you the level and the favourite question types.
- A formula sheet. One page per chapter, written in your own hand, with the conditions under which each result holds.
Habits that save marks in the exam
- Draw a diagram for every mechanics and electrostatics question, including the forces and directions.
- Check units and limiting cases. If your answer for a pendulum does not reduce to the simple case when the extra term is zero, something is wrong.
- Use the options. In multiple-choice questions, dimensional analysis or a special case can often eliminate two options quickly.
- Numerical questions need full care. There are no options to check against, so recheck the arithmetic.
What to avoid
- Memorising hundreds of formulas without knowing their conditions.
- Spending a week on one very hard topic while easier ones stay untouched.
- Reading theory for hours without solving problems.
Our JEE program teaches Physics concept-first, with chapter tests, previous-year practice and weekly doubt sessions. Also read how to plan the last 90 days before JEE Main.
