CBSE Class 12 Physics Syllabus & Exam Pattern (2025-26)

Overview of CBSE Class 12 Physics

CBSE Class 12 Physics is a core subject that builds directly on the concepts introduced in Class 11 and takes them to an advanced, application-oriented level. The syllabus covers electricity, magnetism, optics, modern physics, and semiconductor electronics, forming the foundation for engineering, medical, and science careers.

Physics plays a critical role in the CBSE board examination (70 marks theory + 30 marks practicals) and is equally important for competitive exams such as JEE Main, JEE Advanced, and NEET. A strong command over numericals, derivations, diagrams, and experiments is essential to score well.

Syllabus Highlights & Exam Pattern

The CBSE Class 12 Physics syllabus for 2025-26 is structured into 9 units covering 14 chapters, with a total theory weightage of 70 marks for a 3-hour exam.

Key highlights of the exam pattern:

• Theory paper includes MCQs, short and long answer questions, numerical problems, and case-based/assertion-reason questions
• Practical assessment: 30 marks (experiments, viva voce, practical file)
• Question distribution: 20% competency-based questions, 40% short and long answer questions, 40% MCQs and assertion-reason

The syllabus has been rationalised for 2025-26, with a sharper focus on core concepts and reduced overlap.

Unit-wise Syllabus Breakdown

The Class 12 Physics syllabus is organised into 9 progressive units, moving from electrostatics to modern physics and electronics.

Class 12 Physics – Unit-wise Syllabus (Official Format)

UNIT	CHAPTERS	MARKS
Unit–I	Electrostatics Chapter–1: Electric Charges and Fields Chapter–2: Electrostatic Potential and Capacitance	16
Unit–II	Current Electricity Chapter–3: Current Electricity	16
Unit–III	Magnetic Effects of Current and Magnetism Chapter–4: Moving Charges and Magnetism Chapter–5: Magnetism and Matter	17
Unit–IV	Electromagnetic Induction and Alternating Currents Chapter–6: Electromagnetic Induction Chapter–7: Alternating Current	17
Unit–V	Electromagnetic Waves Chapter–8: Electromagnetic Waves	18
Unit–VI	Optics Chapter–9: Ray Optics and Optical Instruments Chapter–10: Wave Optics	18
Unit–VII	Dual Nature of Radiation and Matter Chapter–11: Dual Nature of Radiation and Matter	12
Unit–VIII	Atoms and Nuclei Chapter–12: Atoms Chapter–13: Nuclei	12
Unit–IX	Electronic Devices Chapter–14: Semiconductor Electronics – Materials, Devices and Simple Circuits	7
Total (Theory)		70

Students are advised to follow the NCERT textbook sequence, as board questions are framed strictly in accordance with it.

Chapter-wise Weightage (High-Level)

Unit	Marks	Key Topics	Question Types
Optics	18	Ray optics, wave optics, instruments	Diagrams, derivations, numericals
Electromagnetic Waves & AC	18	EM waves, induction, AC circuits	Numericals, theory, applications
Magnetic Effects of Current & Magnetism	17	Magnetic fields, magnetism	Numericals, derivations
Electrostatics	16	Electric fields, potential, capacitance	Numericals, derivations
Current Electricity	16	Current, resistance, circuits	Numericals, applications
Dual Nature + Atoms & Nuclei	12	Photoelectric effect, atoms, nuclei	Theory, derivations, numericals
Semiconductors (Electronic Devices)	7	Semiconductors, diodes, transistors	Circuits, applications

High-weightage areas:

Optics, Electromagnetic Waves, and Magnetism require a strong focus on derivations, numerical examples, and diagrams. Students should always verify marks using the latest CBSE blueprint before exams.

Practical & Experiments

Practicals form a vital part of CBSE Class 12 Physics and carry 30 marks. They help students translate theory into real-world understanding through experiments and observations.

• Experiments: Determining focal length of lenses and mirrors, measuring resistance using meter bridge, AC potentiometer experiments
• Activities: V-I characteristics of diode and Zener diode, transistor characteristics
• Viva voce and practical record: 10 marks combined

Students perform two experiments (15 marks each) in the practical exam and must maintain a properly certified practical file.

Evaluation Scheme for Examination (Practical)

Component	Details	Marks
Two experiments	One from each section	7 + 7
Practical record	Experiments and activities	5
One activity	From any section	3
Investigatory Project	Project work	3
Viva voce	Experiments, activities and project	5
Total		30

How to Study CBSE Class 12 Physics Effectively

• Study NCERT line by line, including examples and diagrams
• Solve at least 40-50 numericals per chapter, including previous years' questions
• Practise ray diagrams, magnetic field diagrams, and graphs daily
• Maintain a one-page formula sheet for quick revision
• Focus only on current syllabus topics, avoiding deleted portions
• For competitive exams like JEE and NEET, chapters such as Electrostatics, Optics, and Modern Physics are of particular importance

Download Physics Syllabus & Study Resources

Students can access reliable learning materials for structured preparation:

• CBSE Class 12 Physics Syllabus PDF (2025-26)
• Chapter-wise notes and derivations
• Numerical problem banks
• Practical manuals and viva questions
• Download Physics Syllabus PDF Free