Welcome to our comprehensive collection of Class 12 Physics-All Chapters. This page provides detailed solutions to all the chapters of the Class 12 Physics textbook. Whether you’re looking for help with Electric Charges, Current Electricity, Optics, or Communication Systems, we’ve got you covered.
Click on any chapter link below to access step-by-step explanations, practice problems, and important concepts to help you ace your exams.
Class 12 Physics-All Chapters
(Based on the latest NCERT textbook – Physics Part I & Part II)
Part I
- Electric Charges and Fields
- Electrostatic Potential and Capacitance
- Current Electricity
- Moving Charges and Magnetism
- Magnetism and Matter
- Electromagnetic Induction
- Alternating Current
- Electromagnetic Waves
Part II
- Ray Optics and Optical Instruments
- Wave Optics
- Dual Nature of Radiation and Matter
- Atoms
- Nuclei
- Semiconductor Electronics
- Communication Systems
The latest syllabus for CBSE Class 12 Physics for the 2025-26 academic year is structured into nine units, totaling 70 marks for the theory paper. The remaining 30 marks are for practical work. The syllabus is based on the NCERT curriculum and covers a wide range of topics from different branches of physics.
Unit-wise Breakdown
Here’s a breakdown of the units and their chapters, along with the marks allotted for each unit:
- Unit I: Electrostatics (16 Marks)
- Unit II: Current Electricity (16 Marks)
- Unit III: Magnetic Effects of Current and Magnetism (17 Marks)
- Unit IV: Electromagnetic Induction and Alternating Currents (17 Marks)
- Electromagnetic Induction
- Alternating Current
- Unit V: Electromagnetic Waves (18 Marks)
- Electromagnetic Waves
- Unit VI: Optics (18 Marks)
- Ray Optics and Optical Instruments
- Wave Optics
- Unit VII: Dual Nature of Radiation and Matter (12 Marks)
- Dual Nature of Radiation and Matter
- Unit VIII: Atoms and Nuclei (12 Marks)
- Atoms
- Nuclei
- Unit IX: Electronic Devices (7 Marks)
- Semiconductor Electronics: Materials, Devices, and Simple Circuits
Important Notes and Deleted Topics
The latest syllabus has removed several topics to streamline the content. Students should focus on the prescribed content and avoid studying the deleted topics. Some of the notable deleted topics include:
- Electric Charge and Fields: The concepts of electric charge (activity & electroscope) and conductors and insulators (earthing concept) have been removed.
- Electrostatic Potential and Capacitance: The derivation for energy stored in a capacitor has been removed, with only the formula to be studied.
- Current Electricity: The resistivity of materials, carbon resistor color code, resistor combinations (series/parallel), meter bridge, and potentiometer have been removed.
- Moving Charges and Magnetism: The cyclotron and magnetic dipole moment have been removed.
- Optics: Concepts like the resolving power of microscopes and astronomical telescopes and polarization of light are no longer part of the syllabus.
- Electronic Devices: Digital electronics and logic gates have been deleted.
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A detailed list of the topics and sub-topics for each chapter is available on the official CBSE academic website. It’s highly recommended to use the latest NCERT textbooks, which are aligned with this updated syllabus, for your preparation.
This video from Unacademy gives an overview of the CBSE Class 12 Physics Syllabus for 2025-26.
Class 12 Physics Syllabus Overview 2025-26
Congratulations on completing your study of Class 12 Physics-All Chapters! This course is a significant milestone, taking you from the fundamental principles of classical mechanics and electricity to the mind-bending frontiers of modern physics. Looking back, we can see a clear and beautiful progression of ideas that ultimately reveals the interconnectedness of the universe.
The journey began with Electrostatics and Current Electricity, where you explored the stationary and moving charges that form the bedrock of all electrical phenomena. From Coulomb’s Law and electric fields to circuits and resistance, these chapters laid the essential groundwork for everything that followed. You then witnessed the magical connection between electricity and magnetism in the unit on Magnetism and the Magnetic Effects of Current. This is where the world of electromagnetism truly opened up, showing that a moving charge creates a magnetic field, and a changing magnetic field can create an electric current.
This culminated in the elegant principles of Electromagnetic Induction and Alternating Current (AC). Here, you learned about Faraday’s Law and the generation of electricity that powers our modern world. The study of AC circuits introduced concepts like impedance and resonance, explaining why a specific frequency of radio waves can be tuned into by your phone.
The second half of the course shifted gears, diving into Optics, a fascinating field that explains how we see and how light behaves. You moved from the familiar world of ray optics, where you learned about mirrors and lenses, to the more abstract realm of wave optics, exploring phenomena like interference and diffraction. This part of the curriculum bridges the gap between everyday experience and the deeper nature of light itself.
Finally, you embarked on the revolutionary journey into Modern Physics. This is perhaps the most exciting part, where the rules of classical physics begin to break down. You explored the Dual Nature of Radiation and Matter, discovering that particles like electrons can behave as waves and waves like light can behave as particles. This idea is central to understanding the universe at its smallest scales.
The chapters on Atoms and Nuclei took you inside the fundamental building blocks of matter, explaining atomic structure, radioactivity, and the immense power of nuclear reactions. The course concluded with Electronic Devices, where you applied the principles of quantum mechanics to understand the working of semiconductors, diodes, and transistors—the tiny components that make all our modern electronics possible.
In essence, your Class 12 Physics-All Chapters journey has been one of unification. You’ve seen how seemingly separate concepts—electricity, magnetism, light, and matter—are all different facets of the same underlying physical laws. This understanding is not just for passing an exam; it’s a foundation for appreciating the incredible order and complexity of the physical world around you. This knowledge will serve as a powerful tool, whether you pursue a career in science or simply continue to be a curious observer of the universe.
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