- Most Important Topics Asked in JEE Mains 2026 Session 1 Exam
- JEE Main PYQ Weightage of Class 11 and Class 12 Syllabus
- JEE Main 2026 Chapter Wise Weightage Maths
- JEE Main Chapter Wise Weightage 2026 Physics
- Chapter-wise Weightage of Chemistry in JEE Main 2026
Most Important Topics Asked in JEE Mains 2026 Session 1 Exam
Check below the most important topics asked in the JEE Mains exam 2026 in the January session:
| Session 1 Dates | Physics Topics | Chemistry Topics | Mathematics Topics |
|---|---|---|---|
| 21 Jan 2026 | Thermodynamics, fluids, energy, and EM waves, Friction, Gravitation, Potential Energy, Wave optics | Organic, Physical Chemistry, Isomerism | Thermodynamics, fluids, energy, and EM waves, Friction, Gravitation, Potential Energy, Wave optics |
| 22 Jan 2026 | Ray optics, fluid mechanics, rotation, inertia, semiconductors, logic gates, ray optics, and thermodynamics. | p-Block elements (3 questions), Coordination Compounds, Chemical Bonding, Biomolecules, and Organic Reaction Mechanisms. | Vector 3D, sequence and series, matrices, differential equations |
| 23 Jan 2026 | Ray Optics, Thermodynamics, Electromagnetic (EM) Waves, Fluid Mechanics, Mechanics, Laws of Motion, Rotational Motion, Kinematics, Electrostatics, Semiconductors, Current Electricity, Units and Dimensions, Gravitation, and Modern Physics | General Organic Chemistry (GOC), Biomolecules, Amines, Hydrocarbons, Coordination Compounds, Chemical Bonding, P-Block and D & F-Block Elements, Qualitative Analysis, Electrochemistry, Chemical Kinetics, Thermodynamics, Ionic Equilibrium, Structure of Atom, Solutions. | Coordinate Geometry, Straight Lines and Circles, Conic Sections (Ellipse and Parabola), Trigonometry, Calculus, Vectors & 3D Geometry, Matrices and Determinants, Sequences and Series, Probability, Relations, Quadratic Equations |
| 24 Jan 2026 | Organ pipe, modern physics, radioactivity, fluids, logic gates, electrostatics, magnetism, moment of inertia, vernier calliper, current, capacitor, thermodynamics, KTG, Kinematics | Isomerism, Ionic equilibrium, GOC, Chemical bonding. Weightage of Physical Chemistry was more. |
3d & Vector, straight lines, ellipse, functions, parabola, conic section, integration, relations & subsets, statistics |
| 28 Jan 2026 | Electrostatics, Current, ray optics, fluids, modern physics, heat and thermodynamics, KTG, wave optics, units and dimensions, error, magnetism | Coordination Compounds, Amines, Chemical Kinetics, Ionic Equilibrium (Buffer), Inorganic Chemistry | Calculus, integration, straight lines, circles, conic sections, quadratic, sequence and series, probability, permutation and combination, binomial, matrices and determinants, vectors and 3d |
JEE Main PYQ Weightage of Class 11 and Class 12 Syllabus
The weightage of the class 11 and class 12 syllabus in JEE Mains is almost the same. The candidates have to prepare for the exam by giving equal importance to both classes. Check below the number of questions asked in the JEE Mains exam from class 11 and class 12 syllabus over the past two years:
| JEE Main 2025 | ||
|---|---|---|
| Session 1 | Session 2 | |
| Number of questions from class 12 | 121 | 109 |
| Number of questions from class 11 | 129 | 116 |
| JEE Main 2024 | ||
| Session 1 | Session 2 | |
| Number of questions from class 12 | 141 | 143 |
| Number of questions from class 11 | 159 | 157 |
| Want to know what your JEE Main 2026 rank will be based on your score and percentile? Check out the JEE Main rank predictor 2026 by Shiksha.com, which predicts your rank after analysing several years’ percentile/marks vs rank data. JEE Main 2026 Rank Predictor |
JEE Main 2026 Chapter Wise Weightage Maths
Below are the chapters, total questions, and JEE Main chapter wise weightage of Maths paper. Students must know that the chapter-wise weightage is prepared based on JEE Main previous year question papers by analysing the topics and questions that had been asked in past years.
| Chapters |
Total Questions |
Weightage |
|---|---|---|
| 1 |
3.3% |
|
| Permutations & Combinations |
1 |
3.3% |
| Probability |
1 |
3.3% |
| Complex Numbers |
1 |
3.3% |
| 1 |
3.3% |
|
| Limits |
1 |
3.3% |
| 1 |
3.3% |
|
| Indefinite Integration |
1 |
3.3% |
| Definite Integration |
1 |
3.3% |
| 1 |
3.3% |
|
| Height & Distance |
1 |
3.3% |
| Trigonometric Equations |
1 |
3.3% |
| The Area under the Curve |
1 |
3.3% |
| Quadratic Equations |
1 |
3.3% |
| 1 |
3.3% |
|
| Tangents and Normals |
1 |
3.3% |
| Maxima and Minima |
1 |
3.3% |
| Statistics |
1 |
3.3% |
| Parabola |
1 |
3.3% |
| Ellipse |
1 |
3.3% |
| Hyperbola |
1 |
3.3% |
| Sequences & Series |
2 |
6.6% |
| Straight Lines |
2 |
6.6% |
| 3-D Geometry |
2 |
6.6% |
| 2 |
6.6% |
Also Read: JEE Main Math Question Papers Previous Year
JEE Main 2026 Books for Mathematics
The maths subject is very vast, and it is also considered a challenging subject. Students have to master the theorems and have a clear understanding of the underlying concepts. The important Mathematics books for JEE Main preparation are:
- IIT Mathematics by R.D Sharma
- The Pearson Guide to Complete Mathematics by SL Loney
- Integral calculus and Differential calculus for IIT JEE by Amit Agarwal
- Course in Mathematics for IIT-JEE by TMH Publications
- Arihant Publications Vectors and RD Geometry book
- Introduction to Probability and its applications for JEE Main and advanced by Wiliam Feller
Commonly asked questions
Clearing the JEE Main exam in first attempt is not a difficult task. Several students clear JEE Main while in class 12. One thing that makes it easy to clear JEE Main with class 12 is that students are in regular touch of most JEE syllabus. To score good marks in JEE Main in the first attempt, it is advised that you study class 11 and 12 topics thoroughly, clear all the concepts and solve mock test papers. Also, NCERT books which you study in class 11 and 12 are the best books for JEE Main preparation. Students must study NCERT properly and solve all the questions in the book and do not memorize the concepts as some students do rather understand the concepts.
JEE Main Chapter Wise Weightage 2026 Physics
Below are the chapters, total questions, and JEE Main chapter wise weightage of Physics paper. Candidates can check below the topics and number of questions that were asked in the previous year in JEE Main exam.
| Chapters |
Total Questions |
Weightage |
|---|---|---|
| 1 |
3.3% |
|
| 1 |
3.3% |
|
| 1 |
3.3% |
|
| Sound Waves |
1 |
3.3% |
| Elasticity |
1 |
3.3% |
| Error in Measurement |
1 |
3.3% |
| Circular Motion |
1 |
3.3% |
| 1 |
3.3% |
|
| 1 |
3.3% |
|
| 2 |
6.6% |
|
| 2 |
6.6% |
|
| 2 |
6.6% |
|
| Kinematics |
2 |
6.6% |
| 2 |
6.6% |
|
| 2 |
6.6% |
|
| Centre Of Mass |
2 |
6.6% |
| Rotational Dynamics |
2 |
6.6% |
| Modern Physics |
2 |
6.6% |
| 2 |
6.6% |
|
| 3 |
9.9% |
Also read: Last 10 Years Question Paper of JEE Main With Solutions
JEE Main 2026 Books for Physics
Physics is also one of the toughest papers to clear in a competitive examination, as it consists of its fundamental concepts. Below are a few of the best books, which have helped candidates to score better marks in the entrance exam.
- Understanding Physics for JEE Main and JEE Advanced by DC Pandey
- Understanding Physics Electricity and Magnetism by DC Pandey
- Concepts of Physics (Volume 1 and 2) by H C Verma
- Complete Physics for JEE Main by I E Irodov
- Problems in General Physics by I E Irodov
Also Read: JEE Advanced Previous Year Question Papers: Download PDF with Solutions Here
Chapter-wise Weightage of Chemistry in JEE Main 2026
Below are the chapters, total questions, and JEE Main chapter wise weightage of Chemistry paper. The chapter-wise weightage had been analysed based on JEE Main past year papers in Chemistry questions.
| Chapters |
Total Questions |
Weightage |
|---|---|---|
| Mole Concept |
1 |
3.3% |
| 1 |
3.3% |
|
| Electrochemistry |
1 |
3.3% |
| 1 |
3.3% |
|
| Solution & Colligative Properties |
1 |
3.3% |
| General Organic Chemistry |
1 |
3.3% |
| Stereochemistry |
1 |
3.3% |
| 1 |
3.3% |
|
| Alkyl Halides |
1 |
3.3% |
| Carboxylic Acids & their Derivatives |
1 |
3.3% |
| Carbohydrates, Amino-Acids, and Polymers |
1 |
3.3% |
| Aromatic Compounds |
1 |
3.3% |
| 2 |
6.6% |
|
| 2 |
6.6% |
|
| 2 |
6.6% |
|
| Solid-State And Surface Chemistry |
2 |
6.6% |
| Nuclear & Environmental Chemistry |
2 |
6.6% |
| Thermodynamics & the Gaseous State |
2 |
6.6% |
| Transition Elements & Coordination Compounds |
3 |
9.9% |
| Periodic table |
3 |
9.9% |
Also Read: JEE Main Chemistry Question Papers Previous Year
Best Books for JEE Main 2026 Chemistry
JEE Main Chemistry is divided into physical, inorganic and organic. Studying with regular revision is important to master the subject as it involves a number of reactions and formulas. Some best books for effective preparation of chemistry are:
- IIT Chemistry by O P Tandon
- Organic Chemistry by Morrison and Boyd
- Complete Chemistry for JEE Main by NCERT
- Physical Chemistry by O P Tandon
- Organic Chemistry by Solomon and Fryhle
- Concise Inorganic Chemistry by J D Lee
- Textbook for the Modern Approach to Chemical Calculations by R C Mukherjee
- Numerical Chemistry by P Bahadur
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Student Forum
Answered 8 hours ago
If the details mentioned on the JEE Main admit card are incorrect, then candidates should immediately contact the NTA helpline to get it corrected at +91-11-40759000.
Y
Contributor-Level 7
Answered 9 hours ago
Yes, you can wear a hijab in the JEE Mains exam as it is considered a religious item. However, you will likely undergo enhanced security checks at the exam centre.
You should arrive early to complete this frisking process. Make sure to keep your face visible for identification.
M
Contributor-Level 10
Answered Yesterday
The SUPR section is comparable to JEE Main, but REAP section is considered challenging as it requires creative thinking and "out-of-box" problem solving. It can be compared to the Olympiad level questions.
S
Contributor-Level 7
Answered 2 days ago
OJEE and JEE syllabus is somewhat same and different in some places. The OJEE syllabus for Physics, Chemistry and Mathematics is different from JEE. In JEE, the physics syllabus includes topics such as Mechanics, Thermodynamics, Optics, etc. These topics require knowledge of physics topics.
S
Contributor-Level 6
Answered 5 days ago
JEE Main is conducted in two sessions, the first in January/February and the second in April. This helps students to appear in both papers if required and correct their scores. If you participate in both exam sessions, the system intelligently recognises your "Best of Two" scores and finalises your
R
Contributor-Level 9
Answered 5 days ago
DTU admissions are majorly based on the JEE Main scores. However, without JEE Mains, students will have to change the specialisations and the course opted for then only admission will be possible.
I
Contributor-Level 10
Answered 5 days ago
While clearing JEE Main is a huge achievement, it's actually just the first hurdle for IITs. JEE Main acts as a qualifying test that allows the top 2.5 Lacs candidates to sit for JEE Advanced. To get into IIT Dharwad, your final seat allocation will be based strictly on your JEE Advanced rank. JEE M
R
Contributor-Level 9
Answered 5 days ago
Congratulations! After JEE Main, register for JEE Advanced, which is the only way to get into an IIT. This registration usually happens in late April or early May, with the exam itself scheduled for late May. This is a very tight window, so keep a close eye on the official portal right after your Ma
R
Contributor-Level 9
Answered 5 days ago
It starts with JEE Main registration, which opens around November. The first JEE Main session is held in January-February, you must keep your documents ready by the end of the previous year. If you miss the first window, don't worry, you can still register for the second session of JEE Main in April
R
Contributor-Level 9
Answered 6 days ago
The candidates should master time management and accuracy to be able to score well in the JEE Main exam. Use a strategic approach while solving the questions to be able to score good marks.
M
Contributor-Level 7
Exam On - 2 Apr '26 - 9 Apr '26
What should I do if my details mentioned on JEE Main admit card are incorrect?