CBSE Class 12th Physics Weightage 2026 - Check chapter wise weightage

Jan 16, 2026 | CBSE 12th

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Each chapters and topics in CBSE Class 12th Physics exam has different weightage. Knowing about the weightage helps students prioritise topics accordingly. Check here CBSE Class 12th Physics Weightage 2026!

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The CBSE 12th Physics Exam 2026 will be conducted for a total of 100 marks. The Theory paper is worth 70 marks and Practical assessment is worth 30 marks. The Theory assessment will include MCQs, Assertion type questions, and Very Short, Short and Long questions. The Practical assessment will assess Experiments, Activities and Projects. As there is no negative marking in the 12th Physics Examination conducted by CBSE, it is advisable that all 33 theory questions and practicals be attempted in the examination.

The Theory assessment will consist of five sections. Section A contains 16 Objective type questions (MCQs, Assertions and Reasons) for a total of 16 marks, Section B contains 5 Very Short Answer Type Questions (10 marks total), Section C contains 7 Short Descriptive Answer Type Questions (21 marks total), Section D contains 2 Case Study Based Questions (8 marks total), and Section E contains 3 Long Descriptive Type Questions (15 marks total).

The CBSE Class 12th Physics High weightage units include Unit VI Optics (18 marks), Unit III Magnetic Effects of Current and Magnetism, and Unit IV Electromagnetic Induction and Alternating Currents (17 marks). More details about the CBSE 12th Physics Weightage 2026 can be found below:

CBSE Class 12th Physics Exam Pattern 2026

The CBSE Class 12 Physics Exam 2026 is divided into a theory paper worth 70 marks and a practical assessment worth 30 marks. You are expected to complete all 33 questions asked in the physics paper. The detailed exam pattern is provided below.

Question Type	No. of Questions	Marks per Section
Section A - Objective Type (MCQs & Assertion–Reason)	16 x 1	16 marks
Section B - Very Brief Answer	5 x 2	10 marks
Section C - Brief Descriptive Answer	7 x 3	21 marks
Section D - Case Study–Based Questions	2 x 4	8 marks
Section E -Descriptive/Long Answer	3 x 5	15 marks
Total	33 Questions	70 Marks

Also Read: CBSE 12th Previous Year Question Papers 2026

CBSE Class 12th Physics Unit-Wise Weightage 2026

You can use the CBSE Class 12 Physics 2026 Unit Weightage to identify the units that are most crucial for achieving a high score on the board exam. The Optics unit carries the heavy weightage of 20% in the CBSE Class 12 Physics Exam. Below is a list of the CBSE Class 12th Physics Unit-Wise Weightage 2026.

Topics/Units	Weightage %
Unit I - Electrostatics	14%
Unit II - Current Electricity	8.5%
Unit III: Magnetic Impacts of Magnetism and Current	16%
Unit IV - Electromagnetic Induction and Alternating Currents	8.5%
Unit V - Electromagnetic Waves	5.5%
Unit VI - Optics	20%
Unit VII: The Dual Nature of Matter and Radiation	5.5%
Unit VIII - Atoms and Nuclei	12%
Unit IX - Electronic Devices	10%
Total	100%

Also Read: CBSE Class 12 Physics Syllabus 2026

CBSE Class 12th Physics Chapter-Wise Weightage 2026

The units related to Ray Optics and Optical Instruments, as well as Moving Charges and Magnetism, have a much higher weight than other subjects, so it is essential to concentrate on them in order to perform well on the board exam. Details regarding the CBSE Class 12th Weightage 2026 can be checked below:

Unit	Chapters	Approximate Marks
I	Electric Charges and Fields (Chapter 1) Electrostatic Potential and Capacitance (Chapter 2)	10 Marks
II	Current Electricity (Chapter 3)	6 Marks
III	Moving Charges and Magnetism (Chapter 4) Magnetism and Matter (Chapter 5)	11 Marks
IV	Electromagnetic Induction (Chapter 6) Alternating Current (Chapter 7)	6 Marks
V	Electromagnetic Waves (Chapter 8)	4 Marks
VI	Ray Optics and Optical Instruments (Chapter 9) Wave Optics (Chapter 10)	14 Marks
VII	Dual Nature of Radiation and Matter (Chapter 11)	4 Marks
VIII	Atoms (Chapter 12) Nuclei (Chapter 13)	8 Marks
IX	Semiconductor Electronics (Chapter 14)	7 Marks
Total		70 Marks

Also Read: CBSE 12th Sample Papers 2026

CBSE Class 12th Physics Internal Assessment Weightage 2026

The Physics practical exam consists of five different components and carries 30 marks. You should note that the practicals will be conducted for 2 hours and the written test will be conducted for half an hour. More details regarding the practical assessment can be checked below:

Topic	Marks
Practical record (activities and experiments)	5 Marks
Investigatory Project	3 Marks
One activity from any A or B section	3 Marks
Viva on theory, experiments, procedures, activities, and projects	5 Marks
Section A Experiment	7 Marks
Section B Experiment	7 Marks
Total	30 Marks

Also Read: CBSE 12th Physics Deleted Syllabus 2026

How to Score High Using CBSE Class 12th Physics Weightage 2026

Given below are some tips for achieving a high score on the CBSE Class 12th Physics Weightage 2026:

Look for the topics that have been asked a lot on previous exams within each chapter.
Spend as little time as possible on chapters that only carry three to five marks. This will maximize your achievements in chapters that carry ten to fourteen marks.
Make sure to solve past year papers because the same questions often recur in exams.
Make sure you learn and master important derivation step by step and memorize key formulae.
To help with reviewing key concepts/chapters/units, write them down in a way that allows for quick reference.
When you take an examination, you should reasonably be attempting to answer as many high-weightage questions as possible first to ensure you receive the maximum number of marks from the exam before answering the next group of smaller questions.
Make sure to perform all revisions on the high-weightage chapters multiple times to ensure you have full comfort and clarity regarding the material.
You should always remember to combine your experience with practical exercises when you are studying theoretical concepts. Many times concepts that are associated with experimentation appear in MCQs and oral exams.