If you are a Class 12 student under the Central Board of Secondary Education (CBSE) preparing for the 2027 board examination, understanding the CBSE Class 12 Physics deleted syllabus 2027 is one of the first steps toward a focused study plan. For the academic session 2026–27, CBSE has published its senior secondary curriculum on the official academic portal. Physics (subject code 042) continues to span nine units and fourteen NCERT chapters, with 70 marks for theory and 30 marks for practical work. What has changed for many students is not the number of chapters but the portions inside each chapter that CBSE and NCERT mark as excluded from board assessment.
This guide explains, in plain language, how deleted syllabus rules work, what topics are commonly reported as removed chapter by chapter, how marks are distributed across units, which practical items may no longer appear, and how to verify everything against your own textbook. The goal is to help you study smarter not shorter for Indian students and parents who are planning higher education admissions after Class 12.
What Does “Deleted Syllabus” Mean for CBSE Class 12 Physics 2027?
CBSE does not always release a separate booklet titled “deleted topics.” Instead, the board expects schools and students to follow the curriculum document for 2026–27 together with NCERT Physics textbooks (Parts I and II). Sections and exercises marked as not for evaluation or excluded in NCERT are not tested in the February 2027 theory paper. Most reported deletions are partial: a derivation step, a classroom activity, an advanced application, or selected exercise numbers not entire chapters.
Students aiming for engineering entrances often study at coaching hubs in Kota, where institutes such as the Gurukul Institute of Engineering and Technology Kota and the Modern Institute of Technology and Research Centre Kota admit graduates who cleared Class 12 with Physics. Even if you later pursue B.Tech, your board syllabus still defines what you must master for the 70-mark theory exam.
Key facts at a glance
- Session: 2026–27; board exams expected around February 2027 (date sheet not released yet).
- Theory: 70 marks across 14 chapters in 9 units.
- Practical: 30 marks; some experiments and activities are reported removed confirm with your school.
- Full-chapter deletion: Not reported for 2026–27; Communication Systems remains outside the current 14-chapter list from earlier reforms.
- Verification: Always match topic lists with NCERT exclusion markings and cbseacademic.nic.in curriculum for Physics (042).
How to Verify the Official Syllabus (Do Not Rely on Rumours)
Education websites often compile chapter-wise deletion lists by reading NCERT footnotes. Those compilations are useful starting points, but your NCERT copy is the final reference for what will not be evaluated. Download the CBSE curriculum for 2026–27, open the Physics section, and read unit outcomes alongside your textbook table of contents.
Cross-check three sources: (1) CBSE curriculum PDF on cbseacademic.nic.in, (2) NCERT Class 12 Physics latest print with exclusion tags, and (3) sample question papers issued by CBSE for the current session. Previous-year papers from 2023–2025 still help you learn question framing, but skip questions that clearly belong to excluded portions when you practice for 2027.
CBSE Class 12 Physics Deleted Syllabus 2027: Chapter-Wise Topics
The table below summarises reported excluded topics for each chapter. Treat it as a study checklist until you confirm each line in your book.
| Unit / Chapter | Reported deleted / excluded areas | Core areas you should still master |
|---|---|---|
| Unit I: Electric Charges and Fields | Paper-strips activity, electroscope making, earthing concept (as marked), some exercises | Coulomb’s law, electric field, dipole, Gauss’s theorem applications |
| Unit I: Electrostatic Potential and Capacitance | Full derivation of energy stored in a capacitor; selected exercises | Potential, dielectrics, capacitors, energy stored (result and use) |
| Unit II: Current Electricity | Resistivity tables, carbon resistor colour code, series–parallel combo drills, meter bridge, potentiometer (theory parts marked out), some exercises | Drift velocity idea, Ohm’s law, Kirchhoff’s rules, Wheatstone bridge |
| Unit III: Moving Charges and Magnetism | Velocity selector, cyclotron details, toroid, magnetic moment of revolving electron, some exercises | Biot–Savart law, Ampere’s law, Lorentz force, galvanometer basics |
| Unit III: Magnetism and Matter | Heavy maths on bar magnet as solenoid, Earth’s magnetism tables, Curie’s law and temperature, hysteresis, permanent magnets and electromagnets (as excluded) | Bar magnet, field lines, Gauss’s law for magnetism, magnetic materials (qualitative) |
| Unit IV: Electromagnetic Induction | Quantitative energy considerations, eddy currents (if marked), some exercises | Faraday’s law, Lenz’s law, motional emf, self and mutual inductance |
| Unit IV: Alternating Current | Inductor magnetisation detail, capacitor charging graphs, analytical LCR solution, sharpness of resonance, LC oscillations (excluded portions) | RMS values, reactance, impedance, resonance idea, transformer |
| Unit V: Electromagnetic Waves | Ether hypothesis discussion, some exercises | Displacement current, EM spectrum and uses |
| Unit VI: Ray Optics and Optical Instruments | Advanced sunrise/sunset refraction, mirage, diamond and rainbow detail, scattering of light (marked sections) | Reflection, refraction, lenses, prism, microscope, telescope |
| Unit VI: Wave Optics | Doppler effect in optics context, full derivation of interference conditions, resolving power, validity of ray optics proof, polarisation by scattering/reflection (excluded) | Huygens’ principle, Young’s double slit (results), single-slit diffraction (qualitative) |
| Unit VII: Dual Nature of Radiation and Matter | de Broglie wavelength derivation for accelerated electron, uncertainty principle, Davisson–Germer experiment, long historical digressions | Photoelectric effect, Einstein’s equation, de Broglie relation (use) |
| Unit VIII: Atoms | Spectral series detail, derivation of Bohr radius, quantitative line spectra | Rutherford model, Bohr model results, energy level diagrams |
| Unit VIII: Nuclei | Law of radioactive decay (detailed), alpha/beta/gamma decay depth, nuclear reactor (if marked) | Nuclear size, mass defect, binding energy, fission and fusion (core ideas) |
| Unit IX: Semiconductor Electronics | Special-purpose diodes, digital electronics and logic gates (excluded blocks) | Energy bands, p–n junction, diode I–V curve, rectifier |
What this means for your daily study
If you spent hours on potentiometer derivations or logic-gate projects, check whether those pages are struck out in your NCERT. When a derivation is deleted, you may still need the final formula or concept for numerical problems elsewhere in the chapter. For example, capacitor energy might drop the long derivation but retain application questions using U = ½ CV².
Deleted Practical Syllabus for Class 12 Physics 2027
The practical component remains 30 marks, but several items are widely reported as removed from the suggested list. Your school laboratory and internal examiner finalize which experiments you perform, so ask your Physics teacher for the approved list at the start of the session.
- Section A (reported removed): Compare EMFs of two primary cells using a potentiometer; find internal resistance of a primary cell using a potentiometer.
- Section B (reported removed): Zener diode characteristic and reverse breakdown voltage; wavelength of laser by diffraction.
- Activity (reported removed): Polarisation using two polarisers.
- Project / demonstration (reported removed): Logic-gate combination for a truth table; NOT, OR, AND gates with bells, cells, and switches.
Practical skills in remaining experiments still matter for lab manuals and viva. Students interested in applied science programmes such as those offered at the University of Petroleum and Energy Studies benefit from clear lab records even after syllabus trimming.
Unit-Wise Marks Weightage for CBSE Class 12 Physics 2027
Understanding weightage helps you allocate revision weeks. The 2026–27 curriculum keeps a 70-mark theory paper; unit marks below follow the pattern reported for recent sessions and should be confirmed in the official curriculum PDF.
| Unit | Chapters | Marks |
|---|---|---|
| I: Electrostatics | 1–2 | 10 |
| II: Current Electricity | 3 | 6 |
| III: Magnetic Effects and Magnetism | 4–5 | 11 |
| IV: EMI and AC | 6–7 | 6 |
| V: Electromagnetic Waves | 8 | 4 |
| VI: Optics | 9–10 | 14 |
| VII: Dual Nature | 11 | 4 |
| VIII: Atoms and Nuclei | 12–13 | 8 |
| IX: Electronic Devices | 14 | 7 |
| Total | 70 |
Optics (Unit VI) carries the highest share at about 14 marks, with Ray Optics often cited around 10 marks alone. Magnetism (Unit III) follows at roughly 11 marks. Together with Electrostatics, these three areas cover about half the theory paper priority chapters for February 2027.
High-yield chapters for quick scoring
- Ray Optics and Optical Instruments numericals on lenses and instruments.
- Moving Charges and Magnetism Biot–Savart and Ampere’s law applications.
- Electric Charges and Fields plus Electrostatic Potential field and potential problems.
- Semiconductor Electronics short, concept-driven questions when retained portions are revised well.
Updated Exam Pattern and Competency Levels
CBSE Class 12 Physics follows the competency-based blueprint. Roughly 38% of theory marks target remembering and understanding, 32% application, and about 30% analysing, evaluating, and creating. Case-based questions in Section D reward students who read real-life contexts not rote copies of deleted derivations.
| Section | Question type | Count | Marks each | Section total |
|---|---|---|---|---|
| A | Multiple choice questions | 16 | 1 | 16 |
| B | Very short answer | 5 | 2 | 10 |
| C | Short answer | 7 | 3 | 21 |
| D | Case-based | 2 | 4 | 8 |
| E | Long answer | 3 | 5 | 15 |
| Total | 70 | |||
Practice MCQs and case studies from CBSE sample papers. Institutions that admit on merit plus entrance tests like Krishna Institute of Engineering and Technology, Galgotias College of Engineering and Technology, and SRM Institute of Science and Technology Chennai still expect strong fundamentals; board exam training builds speed and accuracy for those paths.
Study Strategy After Syllabus Reduction
1. Trim without dumbing down
Deleting topics frees time, but do not ignore related concepts that still appear in retained sections. Use freed hours for Optics numericals and Magnetism mixed problems areas with higher marks.
2. NCERT remains the base
NCERT covers the assessed syllabus. Add NCERT Exemplar for tougher numerals and CBSE sample papers for 2026–27 question styles. Reference books are optional supplements, not replacements.
3. Align board prep with entrance exams
JEE Main, JEE Advanced, and NEET often include topics CBSE marked out for boards. If you are a dual-preparation student, maintain a separate tracker: “board-only,” “entrance-only,” and “overlap.” Your school marks still matter for college applications from Delhi universities such as Jesus and Mary College Delhi to state engineering colleges like Jagannath Institute of Engineering and Technology Cuttack.
4. Previous-year papers with filters
Solve 2023–2025 board papers question by question. Mark each solution as “in syllabus” or “excluded” using your NCERT. This habit prevents panic when you see an old potentiometer question that no longer applies.
5. Practical and project planning
With logic-gate projects reported out, choose investigatory topics from retained chapters e.g., factor affecting resistance, or focal length determination. Document readings neatly for the external practical examiner.
Timeline: CBSE Class 12 Board Exam 2027
As of late 2026, CBSE has not released the Class 12 date sheet for 2027. Historically, theory exams begin in February, with Physics usually in the science stream block. Monitor cbse.gov.in for announcements; schools typically complete practicals in January.
Students from boards affiliated with state science universities such as the Assam Science and Technology University still use CBSE Physics syllabi as a benchmark when switching boards or seeking lateral entry. Keeping your official mark sheet aligned with the published curriculum avoids document mismatches during admission.
Common Mistakes Students Make After Deletions
- Skipping entire chapters because of a viral “deleted chapter” post verify first.
- Studying outdated coaching modules that drill excluded potentiometer proofs for boards.
- Ignoring case-based practice while chasing removed derivations.
- Assuming practicals are optional 30 marks still shape your percentage.
- Forgetting exercise questions that remain in syllabus while only some numbers are excluded.
Understanding NCERT “Not for Evaluation” Markings
NCERT revises textbooks periodically; exclusion tags appear as boxed notes, greyed exercises, or explicit “not for evaluation” labels. Teachers may still discuss some excluded content for conceptual depth, but board examiners are instructed to restrict assessment to retained portions. If your school uses an older NCERT stock, compare the ISBN with the latest edition on the NCERT website. Mismatch between classmates’ books is a common reason two students follow different “deleted” lists from the same coaching centre.
When in doubt, ask your subject teacher to sign off on a chapter-wise retained list. Schools submit internal records to CBSE; they receive circulars clarifying practical and theory scope. Parent–teacher meetings at the start of Class 12 are the right forum to confirm whether activities like electroscope construction remain optional demos only.
Chapter-Wise Action Tips for Retained Portions
Electrostatics (Units I–II, ~16 marks combined with current electricity split)
Master Gauss’s law applications for symmetric charge distributions and capacitor combinations. Even when capacitor energy derivation is out, numericals on equivalent capacitance in series and parallel remain favourites. Draw field lines cleanly in diagram-based questions they fetch presentation marks in long answers.
Magnetism and EMI (Units III–IV)
Practice direction-convention problems: Fleming’s rules, Lenz’s law sign, and force on a wire in a magnetic field. Cyclotron and velocity selector removals mean you can deprioritise those long explanations unless you also prepare for engineering entrances. Transformers and AC graphs stay relevant; practise reading phasor-style diagrams at the level retained in your NCERT.
Optics (Unit VI, ~14 marks)
Ray diagrams for compound microscopes and astronomical telescopes should be exam-ready. Tackle lens maker formula problems and prism deviation. Wave optics focuses on qualitative diffraction and interference results memorise key conditions but skip excluded resolving-power derivations for boards.
Modern Physics and Semiconductors (Units VII–IX)
Photoelectric effect graphs and Bohr energy-level transitions produce quick marks. For semiconductors, understand forward and reverse bias, rectification, and simple band diagrams. Digital logic may be excluded for boards but revisit if your practical list still mentions basic diode kits.
Role of Sample Papers and Marking Scheme
CBSE releases sample question papers and marking schemes each session. These documents are the most reliable predictors of question typology after syllabus trimming. Work through every MCQ in Section A they total 16 marks and reward careful reading of units and significant figures. For Section E long answers, outline answers before writing; examiners follow structured mark distribution in the official scheme.
Students planning undergraduate science or engineering routes should treat the board exam as a timed competency test. Colleges such as the Lords Institute of Engineering and Technology Jaipur and the Vedant College of Engineering and Technology Kota consider Class 12 aggregates alongside entrance ranks; consistent Physics scores strengthen your profile even when admissions are flexible.
Parent and Teacher Checklist
- Confirm official curriculum PDF saved and printed for Physics (042).
- Ensure child uses current NCERT edition with visible exclusion tags.
- Track practical exam dates and internal assessment deadlines from school.
- Balance board syllabus with entrance prep using two-column topic trackers.
- Monitor cbse.gov.in for date sheet and any late circulars on assessment.
Looking Beyond the 2027 Board Exam
Class 12 Physics opens pathways to B.Tech, B.Sc, integrated programmes, and professional courses. Deleted board topics do not limit your curiosity they define what is examined in February 2027. Explore internships, olympiads, and school lab projects on retained themes to build your resume. For management or interdisciplinary options after science, institutions like the Fairfield Institute of Management and Technology admit students from diverse streams; Physics still trains analytical thinking valued in business analytics and finance roles.
Stay disciplined, verify sources, and revise by marks weightage. A syllabus-aware plan reduces stress and keeps your preparation fair, transparent, and aligned with CBSE expectations for the 2026–27 academic year.
Conclusion
The CBSE Class 12 Physics deleted syllabus 2027 reflects a continued focus on core concepts, competency-based assessment, and manageable load across fourteen chapters. No full chapter removal is reported for 2026–27; instead, activities, lengthy derivations, and selected applications drop off the board paper while fundamentals stay. Cross-verify every list with NCERT and cbseacademic.nic.in, prioritise Optics and Magnetism for marks, and practice the current sample paper format. Whether your next step is B.Tech at Bhartiya Institute of Engineering and Technology Sikar, science programmes at Sathyabama Institute of Science and Technology Chennai, or a different stream entirely, a syllabus-aligned Class 12 Physics score remains a trusted signal for Indian higher education admissions.
