NEET Physics Chapter-wise Weightage: What the Official Documents Show and How to Prioritise for 2027

By the Ajay Vatsyayan Classes Home Tutors Team · Reviewed by Ajay Vatsyayan (Founder; B.Tech; IB and Cambridge IGCSE experienced). Last reviewed: 29 September 2026.

There is no official NEET physics chapter wise weightage. NTA does not publish one, and for NEET (UG) 2026 it did not publish the question paper on its website either. The official answer keys list only question numbers and option numbers, so nobody can count physics questions by chapter from official documents alone. What is official is this: physics has 45 compulsory multiple-choice questions worth 180 marks, marked +4 for a correct answer and −1 for a wrong one, across the 20 physics units of the NMC syllabus.

So this guide does not give chapter counts or percentages, and it explains plainly why. Instead, it shows exactly what NTA and NMC publish, maps the 20 syllabus units to the 28 NCERT chapters, explains how to judge the weightage tables you will find online, and gives a priority method for 2027 that works without invented numbers. If you would rather have a tutor build this plan around your child, see our NEET Physics home tutor in Gurgaon page.

The short answer on NEET physics chapter wise weightage

If you have searched for NEET physics chapter wise weightage, you have probably seen tables that give each chapter a number of questions or a percentage. None of those numbers comes from NTA. Here is what can be said from official sources, checked on 29 September 2026:

• The paper size is fixed. The NEET (UG) 2026 Information Bulletin lists 45 physics questions for 180 marks, out of 180 questions and 720 marks in all. Every question is compulsory, and the whole paper lasts 3 hours (2:00 pm to 5:00 pm) in pen-and-paper mode.
• Every physics question carries the same marks. So one question is 4 marks, or about 2.2% of the physics total. A chapter's "weightage" can only ever be a count of questions.
• The syllabus is the boundary. The NMC syllabus for NEET (UG) 2026 lists 20 physics units, from Physics and Measurement to Experimental Skills. We compared its physics text with the 2025 syllabus and found the unit list and topic wording the same.
• No official question paper was published for 2026. The NEET site lists provisional and final answer keys for the 21 June 2026 re-examination, but these give only a question number and the correct option for each test booklet code. Without the questions, a key cannot be sorted by chapter.

The practical answer for a 2027 aspirant is to prepare all 20 units, and to decide where to spend extra time using three things you can check: the syllabus, the links between chapters, and your own mock-test errors. The rest of this guide shows how.

What NTA and NMC actually publish

We checked the official NEET site, neet.nta.nic.in, on 29 September 2026. The table below lists every document that bears on physics preparation, and what each one does and does not contain.

What happened to the 2026 exam

For readers planning around past papers, the 2026 timeline matters. NEET (UG) 2026 was first held on 3 May 2026. In a press release dated 12 May 2026, NTA announced that, with the approval of the Government of India, it had cancelled that examination and would re-conduct it. A public notice dated 15 May 2026 fixed the re-examination for 21 June 2026, again in pen-and-paper mode in 13 languages. According to NTA's result press release, the provisional answer key was published on 25 June 2026, and the final answer key and result followed on 16 July 2026.

So the 21 June 2026 re-examination is the valid NEET (UG) 2026 paper, and it is the only 2026 paper any count should use. Its official answer keys do not include question text, though. Any "NEET 2026 physics paper" you see online is a reconstruction from a candidate's copy or from memory, not an NTA document.

The syllabus is published, and it is detailed

The one official document that tells you what can be asked is the NMC syllabus. The NTA site links the Syllabus for NEET (UG) 2026 as a public notice. It names topics precisely. For example, Unit 7 includes Stokes' law, terminal velocity, Bernoulli's principle, capillary rise, calorimetry and heat transfer. Unit 20 lists 18 specific experiments, from vernier callipers to the characteristic curves of a Zener diode. On 29 September 2026 we found no NEET (UG) 2027 syllabus or 2027 bulletin on the NTA NEET site, so the 2026 documents are the reference until new ones appear. Our guide to the NEET physics syllabus and exam pattern goes through the units topic by topic.

Why this guide gives no chapter counts

We publish chapter counts for JEE Main physics, because NTA posts the JEE Main question papers and we can classify every question ourselves. For NEET 2026 we could not do that, and we will not borrow someone else's count. There are four reasons.

1. No official source. A count is only as good as the paper it comes from. Without an NTA question paper, any count depends on a reconstructed paper that nobody can check against the original.
2. The sample is small. NEET has one paper a year, with 45 physics questions. In a sample that small, one question is 2.2% of the physics marks. A chapter that has 2 questions one year and 3 the next looks like a 50% jump, when it may be chance.
3. Chapter lists differ. NMC uses 20 units. NCERT has 28 chapters. Coaching material often has its own list of 30 or more. A table that says "Current Electricity: 3 questions" means different things depending on where it puts the Wheatstone bridge or the galvanometer.
4. Many questions use two chapters. A question on a charged particle in a magnetic field also uses circular motion. A question on the energy of a photon emitted in a Bohr transition also uses the photoelectric idea of photon energy. Different people file such questions differently.

If NTA publishes an official NEET (UG) question paper in future, we will count it question by question, publish our classification, and update this page and its "last reviewed" date.

How to judge a weightage table you find online

You will still see weightage tables, and some are carefully made. Use this checklist before you let one change your child's study plan.

The last row matters. The NEET (UG) 2022 bulletin set 50 questions per subject: 35 in Section A and 15 in Section B, of which candidates could attempt any 10. The 2025 bulletin announced a return to the pre-COVID pattern of 180 compulsory questions, and the 2026 bulletin kept it. So percentages from the years with optional questions are not directly comparable with today's paper. Even a good table, from named and checkable papers, tells you about emphasis in past years. It does not tell you what 2027 will contain.

The 20 NMC units mapped to NCERT chapters

Most students study from NCERT chapters, but the syllabus is written in NMC units. This map, built from the NMC 2026 syllabus and the contents pages of the NCERT Physics textbooks (2026–27 reprint on ncert.nic.in), lets you move between the two. It is the table we use when we plan lessons.

Three things in this map change how you should read any weightage claim:

• Units 1 to 10 are Class 11; Units 11 to 19 are Class 12. Ten of the 20 units, and 14 of the 28 NCERT chapters, come from Class 11. A student who treats Class 11 as "done" after the school exam is leaving half the syllabus to chance.
• Some units are three chapters wide. Unit 7 alone covers three NCERT chapters: solids, fluids and thermal properties. A table that lists "Unit 7: 3 questions" and "Kinetic Theory: 2 questions" is not comparing like with like.
• The syllabus can be wider than the textbook. The NMC Unit 19 names LEDs, photodiodes, solar cells, the Zener diode as a voltage regulator and logic gates (OR, AND, NOT, NAND and NOR). The contents page of the 2026–27 NCERT Semiconductor Electronics chapter lists sections only up to the junction diode as a rectifier. Check these topics against the syllabus, and use other material where the textbook stops.

A priority method that does not need weightage

Without official counts, we set priorities using evidence a student can check. We give each chapter a place on three scales, then combine them with the student's own mock data.

Scale 1: How many other chapters depend on it

Some chapters are tools that the rest of the paper uses. Kinematics, laws of motion and work–energy are used again in rotation, gravitation, fluids, SHM and the motion of charges in fields. Electrostatic potential is used again in capacitors, current electricity and the photoelectric effect. Units and dimensions are used everywhere. A gap in one of these costs marks in chapters that look unrelated.

Scale 2: How much there is to learn

Some units are wide (Unit 7, Unit 11, Unit 13, Unit 16). Others are short and self-contained (Unit 15 Electromagnetic Waves, Unit 17 Dual Nature, Unit 19 Electronic Devices). Wide units need weeks. Short units can often be made secure in days of focused practice.

Scale 3: How the student is actually losing marks

This is the scale that counts most, and it is the only one that is really about your child. After every full mock, tag each wrong or skipped physics question with its NMC unit and the type of mistake: concept, formula, or calculation. After three or four mocks, the pattern is usually clear.

Putting it together: three priority groups

Here is how our tutors usually group the chapters before we have seen a student's mocks. It is teaching judgement based on the syllabus and the links between chapters, not a count of any exam.

Every unit is on the list, and that is deliberate. The syllabus is the boundary of the exam, and no official source tells you that any unit is safe to skip. For a chapter-by-chapter ranking with the reasons behind it, read our guide to the most important physics chapters for NEET 2027.

Worked examples in NEET style

These four questions were written by our Home Tutors Team in the NEET format: single correct answer, no calculator. They are not taken from any NEET paper. Each comes from a different priority group above, and we checked every answer by calculation.

Example 1: Current Electricity (Unit 12), metre bridge

Question (our own). In a metre bridge, an unknown resistance X is in the left gap and a 10 Ω resistor is in the right gap. The balance point is 40 cm from the left end. What is X?

(1) 15 Ω   (2) 6.67 Ω   (3) 4 Ω   (4) 25 Ω

• At balance, X / 10 = l / (100 − l), where l is the balancing length from the left end.
• X / 10 = 40 / 60 = 2/3, so X = 20/3 Ω ≈ 6.67 Ω. Answer: (2).
• Quick check: the balance point is nearer the left end, so the left resistance must be the smaller one. 6.67 Ω is less than 10 Ω.

Option (1) is what you get if you put the lengths the wrong way round. That is the most common error in this question type, and the "which side is smaller" check catches it in seconds.

Example 2: Dual Nature of Matter and Radiation (Unit 17), stopping potential

Question (our own). Light of wavelength 310 nm falls on a metal with work function 2.0 eV. Find the stopping potential. (Take hc = 1240 eV nm.)

(1) 4.0 V   (2) 6.0 V   (3) 2.0 V   (4) 1.0 V

• Photon energy E = hc/λ = 1240 / 310 = 4.0 eV.
• Maximum kinetic energy = E − φ = 4.0 − 2.0 = 2.0 eV.
• Stopping potential V₀ = K_max/e = 2.0 V. Answer: (3).

Working in electronvolts with hc = 1240 eV nm avoids powers of ten entirely. Option (1) is the photon energy in volts, a typical "stopped one step early" trap.

Example 3: Properties of Solids and Liquids (Unit 7), terminal velocity

Question (our own). Eight identical rain drops, each falling through air at a terminal velocity of 5 cm/s, merge to form one bigger drop. What is the terminal velocity of the bigger drop?

(1) 10 cm/s   (2) 40 cm/s   (3) 20 cm/s   (4) 5 cm/s

• Volume is conserved: (4/3)πR³ = 8 × (4/3)πr³, so R = 2r.
• From Stokes' law, terminal velocity is proportional to the square of the radius (v ∝ r²) for the same liquid and medium.
• So v' = 5 × (2)² = 20 cm/s. Answer: (3).

Option (2) comes from using v ∝ volume, and option (1) from v ∝ r. Knowing why it is r² (weight grows as r³, drag as r×v) removes the guesswork.

Example 4: Rotational Motion (Unit 5), parallel axis theorem

Question (our own). A thin uniform rod of mass 0.6 kg and length 1 m rotates about an axis perpendicular to it, passing through a point 25 cm from its centre. Find its moment of inertia about this axis.

(1) 0.05 kg m²   (2) 0.0875 kg m²   (3) 0.2 kg m²   (4) 0.0375 kg m²

• About the centre: I_c = ML²/12 = 0.6 × 1 / 12 = 0.05 kg m².
• Parallel axis theorem: I = I_c + Md² = 0.05 + 0.6 × (0.25)² = 0.05 + 0.0375 = 0.0875 kg m². Answer: (2).

Options (1) and (4) are each half of the working. The parallel axis theorem only works from an axis through the centre of mass, so always start there.

Numerical questions like these reward a fixed routine more than cleverness. Our guide to NEET physics numericals sets out that routine step by step.

The marking scheme maths: when to attempt

Weightage tells you where to study. The marking scheme tells you how to use what you have studied. Under the 2026 bulletin, a correct answer earns +4, a wrong answer −1 and an unanswered question 0. So the expected score from one attempt, if your chance of being right is p, is 4p − (1 − p) = 5p − 1.

The break-even point is p = 1/5. On paper, then, even a blind guess has a small positive expected value. In practice, we do not advise blind guessing, for two reasons. First, "ruled out" must really mean ruled out. A student who wrongly eliminates the correct option has p = 0 and loses a mark. Second, the time spent agonising over a guess is taken from questions you could have solved. The real lesson of the table is that partial knowledge is worth a lot: being able to eliminate two options reliably turns a question into an expected +1.5.

One more point from the bulletin. If two or more candidates have the same total, the tie is broken by Biology marks first, then Chemistry, then Physics, and then by the ratio of wrong to correct answers. Physics is last in the tie-break order, but a careless wrong answer can still cost you in the ratio steps.

How to build your own chapter count

Because there is no official count, the most useful weightage for your child is one they build from papers they have actually worked on: school tests, full mocks and any past papers you can source. This is the same method we used for our JEE counts.

1. Use NMC units, not book chapters. File every question under one of the 20 units in the syllabus. That keeps your count comparable across different test series.
2. One unit per question. File each question under the unit whose idea decides the answer. A block sliding down a rough incline goes to Laws of Motion, even though it uses kinematics equations.
3. Log a second unit when there is one. Note it in a separate column. If one unit keeps appearing as the "second unit", it is a hidden foundation.
4. Record the outcome. For each question, mark it right, wrong or skipped, and the type of mistake.
5. Look at shares, not raw counts, after several papers. One paper is too small a sample, just as it is for NEET itself.

A simple spreadsheet with columns for paper, question number, NMC unit, second unit, result and mistake type is enough. After a month of mocks, sort it by unit and by mistake type. The rows with the most "wrong" and "skipped" entries are your child's personal high-weightage chapters, and they are more useful than any national table. Our guide to using NEET physics PYQs explains how to add older papers to this log without mixing up the old and new patterns.

Turning the log into a weekly plan

• Foundation gaps first. If the log shows repeated errors in free-body diagrams, units or signs, fix those before adding new chapters.
• One wide unit and one short unit each week. The wide unit builds depth; the short unit adds secure marks quickly.
• Re-test the same unit after two weeks. A unit is secure only when the student gets it right again after a gap.
• Keep Class 11 alive. Put at least one Class 11 unit into every week of Class 12, because ten of the twenty units come from Class 11.

Frequently asked questions

Is there an official NEET physics chapter wise weightage?

No. NTA publishes the Information Bulletin (pattern and marking) and the answer keys, and NMC publishes the syllabus. None of these gives a split of questions by chapter. Any weightage you see is someone's own analysis of a paper, and you should check which paper they used.

Why don't you give chapter-wise numbers for NEET 2026?

Because no official NEET (UG) 2026 question paper was published on the NTA website when we checked on 29 September 2026. The official answer keys list only question numbers and correct options, so they cannot be sorted by chapter. We do not use counts that cannot be traced to an official paper.

How many physics questions are there in NEET, and how many marks?

The NEET (UG) 2026 Information Bulletin lists 45 physics questions for 180 marks, all compulsory, within a 180-question, 720-mark paper lasting 3 hours. Each correct answer earns +4 and each incorrect answer −1. Check the 2027 bulletin when NTA releases it, because the pattern can change.

Which physics chapters should I study first for NEET 2027?

Start with the foundations that other chapters depend on: units and dimensions, kinematics, laws of motion, work and energy, and electrostatics. Then give the most hours to the wide units such as optics, rotation and the magnetism and induction chapters, and secure the short units early. Adjust the order after every mock using your own error log.

Has the NEET physics syllabus changed for 2026?

We compared the physics section of the NMC syllabus for NEET (UG) 2026 with the 2025 syllabus and found the same 20 units with the same topic wording. On 29 September 2026 no 2027 syllabus was listed on the NTA NEET site, so use the 2026 syllabus until a new one appears.

Is NCERT enough for every NEET physics unit?

NCERT covers most of the syllabus, and it should be the first book. But the syllabus can be wider in places. For example, the NMC Unit 19 names logic gates, the Zener diode as a regulator, LEDs, photodiodes and solar cells, while the 2026–27 NCERT semiconductor chapter's contents stop at the diode as a rectifier. Check every unit against the syllabus.

Can I skip a physics chapter if it seems to have low weightage?

We would not. No official source says any unit is safe to skip, and short units are often the quickest marks to secure. With +4 for each correct answer, one extra question from a short unit is worth as much as one from a long unit.

How can a home tutor help with NEET physics priorities?

A tutor can watch how your child actually solves questions, tag errors by unit and mistake type, and adjust the plan every week. Our NEET physics tutors in Gurgaon teach at home or online and use the student's own mock data rather than a generic weightage table.