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Build a JEE Main Physics test from any of the 20 units: a full 25-question section with 5 numericals, a 10-question check on this week's chapters, or a paper that leans on the units you keep losing marks in. Every plan shows questions, numericals, marks and the time it should take at exam pace.
Free · no sign-up · updated October 2026
Your paper
Press Generate paper plan for a chapter-by-chapter blueprint: questions per chapter, numericals, marks and time — ready to print and fill from your PYQs, modules or the BrainStride question bank.
Every chapter in the JEE Main Physics syllabus, heaviest first. The share column is what a 25-question test gives each chapter in exam-weightage mode, before rounding.
| Chapter | Class | Questions per paper | Share of the subject | The mistake it catches |
|---|---|---|---|---|
| Electrostatics | 12 | 2–3 | 10% | Treating potential as a vector, or ignoring the sign of a charge when summing potentials. |
| Rotational Motion | 11 | 1–3 | 8% | Recalling a moment of inertia for the wrong axis instead of using the parallel-axis theorem. |
| Current Electricity | 12 | 1–3 | 8% | Redrawing a symmetric network wrongly, then solving the wrong circuit correctly. |
| Kinematics | 11 | 1–2 | 6% | Choosing a positive direction and then abandoning it halfway through the solution. |
| Properties of Solids and Liquids | 11 | 1–2 | 6% | Treating surface tension and viscosity formulas as interchangeable in Bernoulli problems. |
| Oscillations and Waves | 11 | 1–2 | 6% | Confusing the amplitude and phase conventions when two SHMs are superposed. |
| Magnetic Effects of Current and Magnetism | 12 | 1–2 | 6% | Direction errors: the right-hand rule applied to the current instead of the field. |
| Electromagnetic Induction and Alternating Currents | 12 | 1–2 | 6% | Dropping the minus sign in Lenz’s law and getting the induced current backwards. |
| Optics | 12 | 1–2 | 6% | Sign convention in mirror and lens formulas, especially for virtual images. |
| Atoms and Nuclei | 12 | 1–2 | 6% | Binding energy per nucleon confused with total binding energy. |
| Units and Measurements | 11 | 0–2 | 4% | Adding errors instead of adding relative errors when a formula multiplies quantities. |
| Laws of Motion | 11 | 0–2 | 4% | Using μmg on an incline instead of μmg cos θ. |
| Work, Energy and Power | 11 | 0–2 | 4% | Applying energy conservation across a collision where energy is not conserved. |
| Gravitation | 11 | 0–2 | 4% | Mixing up orbital and escape speed, which differ by a factor of √2. |
| Thermodynamics | 11 | 0–2 | 4% | Sign of work done: taken as positive on the gas and by the gas in the same solution. |
| Dual Nature of Matter and Radiation | 12 | 0–2 | 4% | Using energy in joules where the formula expects electron-volts. |
| Electronic Devices | 12 | 0–2 | 4% | Reading a logic-gate combination without simplifying it first. |
| Experimental Skills | 11–12 | 0–2 | 4% | Least-count and vernier questions answered from memory rather than from the reading given. |
| Kinetic Theory of Gases | 11 | 0–1 | 2% | Using the wrong degrees of freedom for a diatomic gas at high temperature. |
| Electromagnetic Waves | 12 | 0–1 | 2% | Getting the spectrum order wrong when asked to compare frequency and wavelength. |
Chapter weights are BrainStride’s reading of past papers, not official data — NTA publishes no chapter weightage. Ranges overlap, so they do not add up exactly to the subject total.
The same 25-question paper twice: once weighted like the exam, once with Rotational Motion and Electrostatics marked weak. Only the rows that change are shown.
| Chapter | Exam weightage | Weak-chapter mode | Change |
|---|---|---|---|
| Kinematics | 2 | 1 | -1 |
| Rotational Motion | 2 | 4 | +2 |
| Properties of Solids and Liquids | 2 | 1 | -1 |
| Kinetic Theory of Gases | 1 | 0 | -1 |
| Electrostatics | 2 | 5 | +3 |
| Current Electricity | 2 | 1 | -1 |
| Electromagnetic Waves | 1 | 0 | -1 |
Marked chapters get 2.5× their usual share; the questions come from the chapters the paper would otherwise give the most to.
JEE Main Physics is the subject where the gap between understanding and scoring is widest. Students follow the lecture on Rotational Motion, then lose the question to a moment of inertia taken about the wrong axis. Tests are how that gap shows up early.
Test numericals as numericals. Five of the 25 Physics questions are integer-answer, and since 2025 a wrong one costs a mark. Units such as Kinematics, Electrostatics and Current Electricity produce many of them. When the plan gives a unit a numerical, fill it with a question that has no options to eliminate.
Separate the procedural units from the conceptual ones. Current Electricity, Optics and Electrostatics errors are usually procedural — a sign convention dropped, a circuit reduced by habit — and respond quickly to accuracy drills. Rotational Motion and Properties of Solids and Liquids take longer to become reliable; test them more often, in shorter tests.
Never leave a light unit at zero. Units and Measurements or Electromagnetic Waves may bring one question a shift, but those are some of the cheapest marks in the paper. Run an equal-weighting test once a month so they are not quietly forgotten.
The per-unit ranges behind the generator come from our JEE Main Physics page, and the Rotational Motion and Modern Physics chapter guides go deeper on two of the heaviest units.
A weekly cycle
Ten questions, equal weighting, only the chapters you finished last week. It tells you whether they stuck.
Concept gaps go back to the textbook; silly errors get accuracy drills on the same chapter; slow solves get timed sets.
Mark the two chapters that cost you most and build a 25-question paper. They get two and a half times their usual share.
A realistic subject paper, scored with +4 / −1, to check the fixes show up when the weighting is fair.
In BrainStride’s reading of past papers, Modern Physics (Dual Nature plus Atoms and Nuclei), Electrostatics, Current Electricity and Rotational Motion recur most, along with Properties of Solids and Liquids. Each is usually worth one to three questions a shift. NTA publishes no chapter weightage, so treat these as ranges, not promises.
Five of the 25 Physics questions are numerical (integer-answer) questions, and since 2025 all five are compulsory and carry −1 for a wrong answer. The generator keeps that ratio: a 25-question Physics test has five numericals, placed in the units that already carry the most questions.
At exam pace, about 2.4 minutes a question: 60 minutes for a full 25-question Physics section, 24 minutes for ten questions. In the real paper many students spend longer on Physics than on Chemistry, so practise finishing Physics inside an hour.
Not in the sense of writing questions. The generator is a rule-based planner: it reads the exam pattern and BrainStride’s chapter weights from past papers and decides how many questions each chapter gets, so the result is the same every time for the same settings. The AI part of BrainStride is the tutor, which picks your next practice questions from a teacher-checked bank based on the mistakes you have made.
No. The paper plan is built in your browser, nothing is sent to a server and there is no sign-up. Print it or copy it as text if you want to keep it. The free BrainStride diagnostic is a separate, optional step if you want a plan built around your own mistakes.
Exam patterns are from the official information bulletins. Chapter weights are BrainStride estimates from past papers, not official data.
The 20-minute diagnostic names them — then every practice set and every generated test can lean on them.