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By Karan Singh Bisht
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Updated on 18 Dec 2025, 15:05 IST
The CBSE Class 12 Physics Weightage 2026 helps students understand how marks are distributed across different chapters in the exam. By knowing this, you can plan your study time wisely, focusing more on important topics and CBSE Syllabus 2026 that carry higher marks.
Chapters like Electrostatics, Optics, and Electromagnetic Induction deserve extra attention, but don’t forget to give some time to the smaller topics too. This balanced approach will make your preparation smoother and boost your chances of scoring well.
| CBSE Class 12 Physics Weightage 2026 Overview | ||
| Component | Marks | Overview |
| Theory Exam | 70 | Covers all Physics units with derivations, numericals and concepts |
| Practical Exam | 30 | Includes experiments, activities, and viva |
| Total | 100 | Balanced focus on theory and practical knowledge |
The CBSE Class 12 Physics Exam consists of two parts: the theory and practical exams. Both will be 3 hours long. The theory exam will be for 70 marks, while the practical exam will carry 30 marks. If you're preparing for the CBSE Class 12 board exams, you can find the complete weightage for both the theory and practical exams below:
| Unit | Topic | Weightage |
| Unit-I | Electrostatics | 16 Marks |
| Chapter–1: Electric Charges and Fields | ||
| Chapter–2: Electrostatic Potential and Capacitance | ||
| Unit-II | Current Electricity | |
| Chapter–3: Current Electricity | ||
| Unit-III | Magnetic Effects of Current and Magnetism | 17 Marks |
| Chapter–4: Moving Charges and Magnetism | ||
| Chapter–5: Magnetism and Matter | ||
| Unit-IV | Electromagnetic Induction and Alternating Currents | |
| Chapter–6: Electromagnetic Induction | ||
| Chapter–7: Alternating Current | ||
| Unit–V | Electromagnetic Waves | 18 Marks |
| Chapter–8: Electromagnetic Waves | ||
| Unit–VI | Optics | |
| Chapter–9: Ray Optics and Optical Instruments | ||
| Chapter–10: Wave Optics | ||
| Unit–VII | Dual Nature of Radiation and Matter | 12 Marks |
| Chapter–11: Dual Nature of Radiation and Matter | ||
| Unit–VIII | Atoms and Nuclei | |
| Chapter–12: Atoms | ||
| Chapter–13: Nuclei | ||
| Unit–IX | Electronic Devices | 07 Marks |
| Chapter–14: Semiconductor Electronics: Materials, Devices and Simple Circuits | ||
| Total | 70 Marks | |
| CBSE Class 12 Physics Board Weightage 2026 for Practical Exam | |
| Topic | Marks |
| Two experiments (one from each section) | 7 Marks each |
| Practical record (experiments and activities) | 5 Marks |
| One activity (from any section) | 3 Marks |
| Investigatory Project | 3 Marks |
| Viva on experiments, activities, and project | 5 Marks |
| Total | 30 Marks |
| Sections | Type and Number of Questions | Marks | Weightage |
| A | 16 Questions | 1 | 16 |
| B | 5 Questions | 2 | 10 |
| C | 7 Questions | 3 | 21 |
| D | 2 Case Study-Based Questions | 4 | 8 |
| E | 3 Long Answer Questions | 5 | 15 |
| Total Marks | 70 | ||
To score 90+ in CBSE Class 12 Physics 2026, prioritize high-weightage chapters like Electrostatics, Magnetic Effects, and Optics, which together contribute over 40 marks. Master NCERT concepts, numericals, and derivations from these areas while practicing previous year questions weekly. Consistent revision of formulas and short notes ensures conceptual clarity for full marks.
Focus on these scoring topics across key units for maximum returns:
| Unit | Key Topics |
| Electrostatics (16 marks) | Coulomb’s Law, Electric Field & Potential, Capacitors & Combinations, Energy in Capacitors |
| Magnetic Effects (17 marks) | Biot-Savart & Ampere’s Laws, Force on Charges/Conductors, Torque on Dipole, Cyclotron |
| Optics (14 marks) | Ray Optics (Refraction, Lenses, TIR), Wave Optics (Young’s Experiment, Interference) |
| Current Electricity (7 marks) | Kirchhoff’s Laws, Wheatstone Bridge, Potentiometer |
| Semiconductors (7 marks) | Diodes, Transistors, Logic Gates |
| Dual Nature/Atoms/Nuclei (12 marks) | Photoelectric Effect, Bohr Model, Radioactivity, Binding Energy |
To score well in the CBSE Class 12 Physics exam, it’s important to first understand the Physics weightage for 2025–26 and plan your preparation accordingly. When you focus more on high-weightage chapters and practice regularly, you naturally improve both speed and accuracy.
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Chapters like Electrostatics, Current Electricity, Magnetic Effects of Current & Magnetism, Electromagnetic Induction, Optics, and Atoms & Nuclei usually carry higher weightage. These topics often include numerical problems and long-answer questions.
There is not just one chapter with the maximum weightage, but Electrostatics and Optics are generally among the most important and scoring chapters in the Class 12 Physics exam.
CBSE Class 12 Physics has 14 chapters, divided into two parts:
No major changes have been officially announced by CBSE. However, students should always check the latest CBSE syllabus and sample papers to stay updated.
Knowing the weightage helps you:
