JEE Main Physics is 25 questions and 100 marks. Four marks for a right answer, one mark off for a wrong one. This page shows where those 100 marks sat in the 2025 papers, chapter by chapter. Students look for this as the important chapters list, or the high weightage chapters. Read the caution under the table before you treat it as one.
Read this before you use any weightage table, ours or anyone else’s.
NTA does not publish chapter weightage. Every number you see online, this page included, is somebody counting old question papers by hand. Two institutes counted the same January 2025 paper and did not agree on about a third of the chapters. So use this table to decide where to spend extra time. Do not use it to decide what to leave out. No chapter on this list is safe to skip.
We also counted all 475 Physics questions from the 19 JEE Main 2026 shifts, chapter by chapter: JEE Main Physics important chapters.
Where the 100 marks sit
| Part of the syllabus | Questions in one paper | Marks |
| Mechanics | 8 – 9 | 32 – 36 |
| Electricity and Magnetism | 6 – 7 | 24 – 28 |
| Optics | 3 | 12 |
| Modern Physics and Semiconductors | 3 | 12 |
| Heat and Thermodynamics | 2 – 3 | 8 – 12 |
| Oscillations and Waves | 1 – 2 | 4 – 8 |
Counted from the January 2025 and April 2025 papers — 19 shifts in all.
Chapter by chapter
| Chapter | Questions in one paper | Marks |
| Ray Optics | 2 – 3 | 8 – 12 |
| Electric Charges and Fields | 1 – 2 | 4 – 8 |
| Units and Measurements | 1 – 2 | 4 – 8 |
| Rotational Motion | 1 – 2 | 4 – 8 |
| Mechanical Properties of Fluids | 1 – 2 | 4 – 8 |
| Thermodynamics | 1 – 2 | 4 – 8 |
| Moving Charges and Magnetism | 1 – 2 | 4 – 8 |
| Electrostatic Potential and Capacitance | 1 | 4 |
| Current Electricity | 1 | 4 |
| Wave Optics | 1 | 4 |
| Semiconductor Electronics | 1 | 4 |
| Dual Nature of Radiation and Matter | 1 | 4 |
| Gravitation | 1 | 4 |
| Electromagnetic Waves | 1 | 4 |
| Work Energy and Power | 0 – 1 | 0 – 4 |
| Waves | 0 – 1 | 0 – 4 |
| Thermal Properties of Matter | 0 – 1 | 0 – 4 |
| Kinetic Theory of Gases | 0 – 1 | 0 – 4 |
| Atoms | 0 – 1 | 0 – 4 |
| Oscillations | 0 – 1 | 0 – 4 |
| Alternating Current | 0 – 1 | 0 – 4 |
| Motion in a Plane | 0 – 1 | 0 – 4 |
| Laws of Motion | 0 – 1 | 0 – 4 |
| Electromagnetic Induction | 0 – 1 | 0 – 4 |
| Motion in a Straight Line | 0 – 1 | 0 – 4 |
| Mechanical Properties of Solids | 0 – 1 | 0 – 4 |
| Centre of Mass | 0 – 1 | 0 – 4 |
| Nuclei | 0 – 1 | 0 – 4 |
| Magnetism and Matter | 0 – 1 | 0 – 4 |
| Mathematical Tools | no questions of its own | — |
Error analysis and experimental skills questions are counted here under Units and Measurements. Different institutes put them in different places, which is why that one row is the least agreed upon of all.
Four things these numbers tell you
- Ray Optics stays on top. Every count, both sessions, every year. If one chapter deserves an extra revision, it is this one.
- Mechanics carries 8 to 9 questions out of 25. Almost a third of the paper. Class 11 is not a warm-up.
- A chapter marked 0 – 1 is not a chapter to drop. Magnetism and Matter did not appear in one whole session, then came back in the next.
- Mathematical Tools has no questions of its own. It sits inside every other chapter. Weak vectors or weak calculus takes marks away everywhere.
Practise chapter by chapter
Every chapter name above opens ten JEE Main questions for that chapter, with an answer key and a hint for each. Begin with the chapters that carry the most marks, then come down the list. The full set is here: JEE Main Physics chapterwise questions.
Next: the JEE Main Physics formula sheet, chapter by chapter.
The official syllabus, unit by unit: JEE Main Physics syllabus 2027, with what was taken out in 2024.
Where the marks are is not where you stand(मार्क्स कहाँ हैं, यह और आप कहाँ खड़े हैं — दोनों अलग बातें हैं)
A weightage table tells you where the paper spends its marks. It cannot tell you how many of those marks you would get today. Only a timed paper does that.(वेटेज टेबल यह बताती है कि पेपर के नंबर किन चैप्टर में बँटे हैं। यह नहीं बता सकती कि आज आप उनमें से कितने नंबर ला पाएँगे। यह सिर्फ़ टाइम लगाकर दिया गया पेपर बताता है।)
Dhurandhar has three timed papers for every chapter, each with a target score, an answer key and a hint for every question. Begin with the chapters at the top of this table and work down.(धुरंधर में हर चैप्टर के तीन टाइम्ड पेपर हैं — हर पेपर में एक टारगेट स्कोर, आंसर की, और हर सवाल का एक हिंट। इस टेबल में जो चैप्टर सबसे ऊपर हैं, उनसे शुरू कीजिए।)
हर सवाल पर वार करो,
धुरंधर बनकर JEE पार करो!
One JEE Main Physics question every morning
It comes at 7 AM on Telegram. Tap the option you think is right and you will know at once whether it was. The worked hint follows the next morning.