The TN 12th Supplementary Exam 2026 Physics paper is scheduled for June 23, 2026 and carries 70 marks in theory; Electrostatics, Current Electricity, Ray Optics, and Magnetism are the highest-weightage chapters based on previous year question paper trends.
Students appearing for the Tamil Nadu HSC Supplementary Exam 2026 must prioritise high-yield chapters to maximise their score in Physics. The Directorate of Government Examinations (DGE), Tamil Nadu follows the Samacheer Kalvi Class 12 Physics syllabus for the supplementary exam, covering all 10 units. Understanding the chapter-wise mark distribution helps you allocate study time where it delivers the most return before exam day.
- The Physics theory paper carries 70 marks; practical carries 30 marks, making the total subject score 100 marks.
- The TN 12th Supplementary Exam 2026 Physics paper is on June 23, 2026 as per DGE Tamil Nadu.
- Units 1, 2, 3, and 6 (Electrostatics, Current Electricity, Magnetism, and Ray Optics) are the four highest-weightage chapters based on previous year patterns.
- Unit 5 (Electromagnetic Waves) is a short, theoretical chapter — study it fully for 2–3 quick marks.
- All 10 units of the Samacheer Kalvi Class 12 Physics textbook are included in the supplementary exam syllabus.
| Direct Link — TN 12th Supplementary Exam 2026 Official Website (Active) |
| dge.tn.gov.in — Directorate of Government Examinations, Tamil Nadu |
TN 12th Physics Supplementary Exam Paper Pattern 2026
The DGE Tamil Nadu conducts the Class 12 Physics supplementary exam following the same question paper format as the main March examination. The theory paper carries 70 marks over a 3-hour duration. The four-part structure based on previous year patterns is as follows:
| Part | Question Type | Questions Given | To Answer | Marks Each | Total Marks |
|---|---|---|---|---|---|
| Part I | Multiple Choice Questions (MCQ) | 15 | 15 (All compulsory) | 1 | 15 |
| Part II | Short Answer Questions | 9 | 6 | 2 | 12 |
| Part III | Long Answer Questions | 9 | 6 | 3 | 18 |
| Part IV | Essay / Very Long Answer | 5 | 5 (with internal either-or choice) | 5 | 25 |
| Theory Total | 70 | ||||
Each Part IV question has an internal either-or option. Parts II and III draw questions from all 10 units, so strong preparation in high-weightage units directly improves your ability to select and answer the best questions from the given choices.
Chapter-wise Mark Distribution for TN 12th Physics 2026
The table below shows the expected mark contribution from each chapter based on previous year TN 12th Physics question paper analysis. The distribution is approximate and may vary slightly each year.
| Unit No. | Chapter Name | Expected Marks (Theory, out of 70) | Weightage Level |
|---|---|---|---|
| Unit 1 | Electrostatics | 8–9 | High |
| Unit 2 | Current Electricity | 8–9 | High |
| Unit 3 | Magnetism and Magnetic Effects of Electric Current | 7–8 | High |
| Unit 4 | Electromagnetic Induction and Alternating Current | 6–7 | Medium-High |
| Unit 5 | Electromagnetic Waves | 2–3 | Low |
| Unit 6 | Ray Optics | 8–9 | High |
| Unit 7 | Wave Optics | 4–5 | Medium |
| Unit 8 | Dual Nature of Radiation and Matter | 3–4 | Low-Medium |
| Unit 9 | Atomic and Nuclear Physics | 6–7 | Medium-High |
| Unit 10 | Electronics and Communication | 5–6 | Medium |
Units 1, 2, 3, and 6 together are expected to account for nearly 44–50% of total theory marks based on previous year patterns. Prioritising these four chapters gives students the highest return on revision time.
High-Weightage Chapters: What to Focus On
The four chapters below carry the highest expected marks and deserve the most preparation time ahead of June 23.
Unit 1 — Electrostatics (8–9 marks expected): Questions from this chapter appear across all four parts — MCQs on Coulomb’s law and capacitance, short answers on electric field and potential, and essay questions on Gauss’s law applications. Key derivations include the electric field due to an infinite line charge and energy stored in a parallel plate capacitor. Numerical problems based on capacitor combinations are frequent in Part IV.
Unit 2 — Current Electricity (8–9 marks expected): Ohm’s law, Kirchhoff’s laws, the Wheatstone bridge, and potentiometer-based numericals are consistent exam questions. Numerical problems from this unit appear in both Parts III and IV. The colour code of resistors and series-parallel combination circuits are reliable quick-mark topics for MCQs and short answers.
Unit 3 — Magnetism and Magnetic Effects (7–8 marks expected): The Biot-Savart law, Ampere’s circuital law, force on a current-carrying conductor in a magnetic field, and the moving coil galvanometer are standard questions. Essay questions on properties of magnetic materials and the magnetic hysteresis loop appear frequently in Part IV and carry 5 marks each.
Unit 6 — Ray Optics (8–9 marks expected): This chapter is one of the most reliable high-scoring units in TN 12th Physics. Lens maker’s equation, mirror and lens formula derivations, refraction through a prism, total internal reflection, and optical instrument problems (microscope, telescope) are exam staples. Labelled ray diagram questions in this unit carry straightforward marks for students who have practised drawing them.
Unit-wise Important Topics for TN 12th Physics Supplementary 2026
| Unit | Key Topics to Study |
|---|---|
| Unit 1 – Electrostatics | Coulomb’s law, Electric field and electric potential, Gauss’s law and applications, Capacitance, Energy stored in a capacitor, Dielectrics and polarisation |
| Unit 2 – Current Electricity | Drift velocity, Ohm’s law, Resistivity and conductivity, Kirchhoff’s laws, Wheatstone bridge, Potentiometer, Colour code of resistors |
| Unit 3 – Magnetism | Biot-Savart law, Ampere’s circuital law, Torque on a current loop, Moving coil galvanometer, Magnetic materials, Hysteresis loop |
| Unit 4 – EM Induction and AC | Faraday’s laws of electromagnetic induction, Lenz’s law, Self and mutual inductance, LCR circuits, Resonance, Power factor, Transformer |
| Unit 5 – Electromagnetic Waves | Displacement current (concept), Maxwell’s equations (conceptual), Electromagnetic spectrum, Properties and uses of each EM wave band |
| Unit 6 – Ray Optics | Laws of reflection and refraction, Mirror and lens formulae, Lens maker’s equation, Refraction through a prism, Total internal reflection, Optical instruments |
| Unit 7 – Wave Optics | Huygens’ principle, Young’s double slit experiment, Conditions for interference, Diffraction, Polarisation, Brewster’s angle, Malus’ law |
| Unit 8 – Dual Nature | Photoelectric effect, Einstein’s photoelectric equation, Work function, de Broglie hypothesis, Davisson-Germer experiment |
| Unit 9 – Atomic and Nuclear Physics | Rutherford and Bohr models, Hydrogen spectrum, Radioactivity, Half-life and decay law, Nuclear fission and fusion, Binding energy per nucleon |
| Unit 10 – Electronics and Communication | p-n junction diode, Zener diode and voltage regulation, Half-wave and full-wave rectifiers, Transistor (CB and CE modes), Logic gates, Modulation and communication systems |
Last-Minute Preparation Tips for TN 12th Physics Supplementary 2026
- Spend at least 40% of your total study time on Units 1, 2, 3, and 6 — these chapters carry the highest combined marks based on previous year trends.
- Work through all in-text examples and back-of-chapter exercises from the Samacheer Kalvi Class 12 Physics textbook — questions are frequently drawn directly from these.
- Prepare at least 15 key derivations for Parts III and IV, which carry 3 and 5 marks respectively per question — these are your highest-value answers.
- Unit 5 is short and entirely theoretical — a focused read takes under two hours and typically earns 2–3 easy marks in MCQs and short answers.
- Practise drawing labelled circuit diagrams and ray diagrams for Units 3, 6, and 10 — neat diagrams alone carry partial marks.
- Write all important formulas and their SI units on a single reference sheet for last-day revision, prioritising Units 1, 2, 4, and 6.
- Solve at least two previous year supplementary question papers from the DGE Tamil Nadu official website to familiarise yourself with question distribution and time management.
TN 12th Supplementary Exam 2026 Physics FAQs
Ques. Which chapters carry the most marks in the TN 12th Physics supplementary exam?
Ans. Based on previous year trends, Unit 1 (Electrostatics), Unit 2 (Current Electricity), Unit 3 (Magnetism), and Unit 6 (Ray Optics) are the highest-weightage chapters. Each is expected to contribute 7–9 marks to the 70-mark theory paper.
Ques. How many total marks does the TN 12th Physics theory paper carry?
Ans. The TN 12th Physics theory paper carries 70 marks. The practical examination carries an additional 30 marks, making the total subject score 100 marks.
Ques. What is the date of the TN 12th Supplementary Exam 2026 Physics paper?
Ans. The TN 12th Supplementary Exam 2026 Physics paper is scheduled for June 23, 2026, as per the Directorate of Government Examinations (DGE), Tamil Nadu.
Ques. Is Unit 5 (Electromagnetic Waves) important for the Physics supplementary exam?
Ans. Unit 5 carries low weightage (2–3 marks expected) but it is a short, conceptual chapter that can be covered fully in under two hours. Studying it is recommended for quick and easy marks in MCQs and short answer questions.
Ques. Does the TN 12th supplementary exam follow the same syllabus as the main exam?
Ans. Yes. The TN 12th Supplementary Exam 2026 Physics covers the complete Samacheer Kalvi Class 12 Physics syllabus across all 10 units. The four-part question paper format and marking scheme are identical to the main March exam.
Ques. Where can students find previous year TN 12th supplementary Physics question papers?
Ans. Previous year supplementary question papers are available on the official DGE Tamil Nadu website at dge.tn.gov.in. Solving these papers under timed conditions is the most effective way to prepare for the exam pattern and question distribution.
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