JEE Main Physics Chapter Weightage & Important Topics 2027
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Every chapter ranked by how many questions it contributed across 16 past JEE Main Paper-1 shift papers (2022–2025), with the expected number of questions in a 25-question Physics section. Focus your prep top-down.
Chapter-wise weightage
| # | Chapter | Expected in paper | Weightage |
|---|---|---|---|
| 1 | Optics | ~2.0 | ★★★★★ |
| 2 | Magnetic Effects of Current and Magnetism | ~1.9 | ★★★★★ |
| 3 | Electrostatics | ~1.8 | ★★★★☆ |
| 4 | Properties of Solids and Liquids | ~1.7 | ★★★★☆ |
| 5 | Kinematics | ~1.7 | ★★★★☆ |
| 6 | Current Electricity | ~1.6 | ★★★★☆ |
| 7 | Atoms and Nuclei | ~1.5 | ★★★★☆ |
| 8 | Electromagnetic Induction and Alternating Currents | ~1.5 | ★★★★☆ |
| 9 | Oscillations and Waves | ~1.3 | ★★★☆☆ |
| 10 | Rotational Motion | ~1.0 | ★★★☆☆ |
| 11 | Laws of Motion | ~1.1 | ★★★☆☆ |
| 12 | Thermodynamics | ~1.0 | ★★☆☆☆ |
| 13 | Work, Energy and Power | ~1.0 | ★★☆☆☆ |
| 14 | Electronic Devices | ~1.0 | ★★☆☆☆ |
| 15 | Units and Measurements | ~0.9 | ★★☆☆☆ |
| 16 | Gravitation | ~0.9 | ★★☆☆☆ |
| 17 | Dual Nature of Matter and Radiation | ~0.9 | ★★☆☆☆ |
| 18 | Kinetic Theory of Gases | ~0.8 | ★★☆☆☆ |
| 19 | Electromagnetic Waves | ~0.8 | ★★☆☆☆ |
| 20 | Experimental Skills | ~0.5 | ★☆☆☆☆ |
Top 20 most-asked topics
| # | Topic | Chapter | Times asked | Importance |
|---|---|---|---|---|
| 1 | Dimensional formulae of physical quantities | Units and Measurements | 3× | ★★★★★ |
| 2 | Variation of acceleration due to gravity with depth | Gravitation | 2× | ★★★☆☆ |
| 3 | Degrees of freedom and equipartition of energy | Kinetic Theory of Gases | 2× | ★★★☆☆ |
| 4 | Resistance change on stretching a wire | Current Electricity | 2× | ★★★☆☆ |
| 5 | Dimensions of Physics quantities, dimensional analysis and its applications | Units and Measurements | 2× | ★★☆☆☆ |
| 6 | Dimensional analysis of van der Waals constants | Units and Measurements | 1× | ★★☆☆☆ |
| 7 | Torque, moment of inertia, work-energy theorem for rotation | Rotational Motion | 1× | ★★☆☆☆ |
| 8 | Relative velocity, river-boat crossing | Kinematics | 1× | ★★☆☆☆ |
| 9 | Torque and rotational equilibrium about a pivot | Rotational Motion | 1× | ★★☆☆☆ |
| 10 | Adiabatic process, molar heat capacity | Thermodynamics | 1× | ★★☆☆☆ |
| 11 | Moment of inertia of composite bodies | Rotational Motion | 1× | ★★☆☆☆ |
| 12 | Superposition of SHMs, resultant amplitude and maximum acceleration | Oscillations and Waves | 1× | ★★☆☆☆ |
| 13 | Field of an infinite charged sheet, equilibrium of a charged pendulum | Electrostatics | 1× | ★★☆☆☆ |
| 14 | Energy stored, charge capacity in mAh | Current Electricity | 1× | ★★☆☆☆ |
| 15 | Magnetic susceptibility and permeability relation | Magnetic Effects of Current and Magnetism | 1× | ★★☆☆☆ |
| 16 | Field between charged parallel sheets, force on a charge | Electrostatics | 1× | ★★☆☆☆ |
| 17 | Magnetic field on the axis of a circular current loop | Magnetic Effects of Current and Magnetism | 1× | ★★☆☆☆ |
| 18 | Superposition of electric fields, null point between two charges | Electrostatics | 1× | ★★☆☆☆ |
| 19 | Wavefronts and direction of propagation (normal to wavefront) | Optics | 1× | ★★☆☆☆ |
| 20 | Lens magnification, imaging of an extended tilted object | Optics | 1× | ★★☆☆☆ |
Weightage = recency-weighted question count (recent shifts count for more). "Expected/paper" projects each chapter's share onto a 25-question section — a planning guide, not a guarantee.