Units and Measurements
- Units of measurement, System of units, SI units
- Fundamental and derived units
- Least count, significant figures
- Errors in measurements
- Dimensions of physical quantities
- Dimensional analysis and applications
Complete official syllabus for JEE Main Physics with data-backed unit weightage, Class 11 vs Class 12 split, and links to practice on Fundamenthol.
Based on JEE Main Physics previous year questions tagged on Fundamenthol.
The JEE Main syllabus has been stable since the 2024 revision by NTA, which trimmed several chapters from the older syllabus. Unless NTA publishes a fresh notification, the 2027 syllabus is expected to remain identical to 2026. This page will update as soon as the official 2027 syllabus is notified.
Across Physics, Chemistry, and Mathematics, the JEE Main syllabus is roughly split 45 to 55 between Class 11 and Class 12 topics. Class 12 chapters typically carry slightly higher weightage in recent years. See the class-wise breakdown on each subject page.
The JEE Main syllabus has 54 units across three subjects: Mathematics (14 units), Physics (20 units), and Chemistry (20 units). Every unit contains multiple NCERT chapters and sub-topics.
The official JEE Main syllabus PDF is available on the NTA website at jeemain.nta.nic.in. On Fundamenthol, we present the same syllabus in a searchable, chapter-linked format with weightage data from tagged previous year questions.
Based on Fundamenthol's analysis of tagged previous year questions, the highest-weightage Physics chapters are Current Electricity, Optics, Electrostatics, Modern Physics (Dual Nature + Atoms + Nuclei), and Rotational Motion. These five together typically account for over 35 percent of the Physics section.
Most aspirants find Physics conceptually harder than Chemistry, especially in mechanics and electromagnetism. However, Chemistry demands more memorisation. The scoring pattern varies by student, and both sections carry equal weightage of 100 marks.
JEE Main Physics has 20 units in the official syllabus, ranging from Units and Measurements to Electronic Devices and Experimental Skills. Each unit contains multiple NCERT chapters worth of material.