The CBSE Class 12 Physics deleted syllabus 2024-25 includes topics like carbon resistors and electromagnets. Moreover, the revised CBSE Physics syllabus has been reduced by 30%.
Table of Contents
- Chapter-wise CBSE Class 12 Physics Deleted Syllabus
- CBSE Class 12 Physics Deleted Experiments
- CBSE Class 12 Physics Deleted Activities
- CBSE Class 12 Physics Deleted Investigatory Projects
- Updated CBSE Class 12 Physics Syllabus 2024-25 PDF
- CBSE Class 12 Updated Course Structure
- Reasons Behind Physics Deleted Syllabus Class 12 CBSE 2024-25
- Benefits of the Physics Deleted Syllabus Class 12 CBSE 2024-25
The Central Board of Secondary Education has redefined the CBSE class 12 Physics syllabus which includes deleted topics such as electrical resistance, cyclotron, LC oscillations, and more. Students appearing for the CBSE class 12 exams must note the class 12 physics deleted syllabus 2025 available below.
The deleted syllabus will help students in strategising better for the upcoming board exams, creating a more focused approach, as they will be able to dedicate their time only on essential topics. Candidates must begin preparations well in advance to score high marks in the CBSE Physics exam. The latest class 12 physics deleted syllabus 2025 will act as a blueprint for students to create notes on important concepts, helping them in the revision stage.
Chapter-wise CBSE Class 12 Physics Deleted Syllabus
Likewise, students preparing for the upcoming board exams and having Physics as their subject must note the chapter-wise Physics deleted syllabus class 12 CBSE 2024-25. The Board has deleted sub-topics from chapters, such as current electricity, electromagnetic waves, and nuclei. The pointers below list the chapter names and topics excluded from the deleted portion of physics class 12.
| Chapters | Delete Topics |
| Electric Charges and Fields |
Electric Charge (delete only activity with paper strips and making electroscope), Conductors and Insulators (delete only concept of earthing) , Charging by Induction. |
| Electrostatic Potential and Capacitance |
Energy Stored in a Capacitor (delete only derivation), Deleted Exercises are from 2.12 to 2.36. |
| Current Electricity |
Resistivity of Various Materials, Carbon resistors, Colour code for carbon resistor, Combinations of Resistors – Series and Parallel, Meter Bridge, Potentiometer, Deleted Exercises 3.3, 3.4, 3.10, 3.12, 3.14–3.23. |
| Moving Charges and Magnetism |
Velocity Selector, Cyclotron, The Toroid, The Magnetic Dipole Moment of a Revolving Electron, Deleted Exercises for CBSE class 12 physics deleted syllabus 2024-25 are 4.14–4.28. |
| Magnetism and Matter |
Bar Magnet as an Equivalent Solenoid (delete only mathematical treatment), The Dipole in a Uniform Magnetic Field (delete only mathematical treatment), Earth’s Magnetism, Magnetic Declination and Dip Table, Paramagnetism (delete only Curie’s Law), Ferromagnetism (delete only Curie’s temperature; and Hysteresis), Permanent Magnets and Electromagnets, Deleted Exercises are 5.1, 5.2, 5.9–5.11, 5.13–5.25. |
| Electromagnetic Induction | Energy Consideration: A Quantitative Study, Eddy Currents, Deleted Exercises for CBSE class 12 physics deleted syllabus 2024-25 are 6.6, 6.10-6.17. |
| Alternating Current |
Magnetisation and Demagnetisation of an Inductor, Charging and Discharging of a Capacitor, Analytical Solution (of series LCR circuit), Resonance (delete only Sharpness of Resonance), LC Oscillations, Deleted Exercises are 7.6, 7.8, 7.10, 7.12–7.26. |
| Electromagnetic Waves |
Nature of Electromagnetic Waves (delete only about ether and page 277), Deleted Exercises are 8.11–8.15. |
| Ray Optics and Optical Instruments | Refraction (delete only advanced sunrise and delayed sunset), Mirage, Diamond, Some Natural Phenomena due to Sunlight, The Rainbow, Scattering of Light |
| Wave Optics |
Doppler Effect, Interference of Light Waves and Young’s Experiment (retain the final expressions for dark and bright fringes but delete the derivation; delete expression for fringe width), Diffraction (retain only qualitative treatment), Resolving Power of Optical Instruments, Validity of Ray Optics, Polarisation by Scattering, Polarisation by Reflection, Deleted Exercises are 10.7–10.21. |
| Dual Nature of Radiation and Matter |
Wave Nature of Matter (delete only derivation for de Broglie wavelength of accelerated electron; and Heisenberg’s uncertainty principle), Davisson and Germer Experiment, The History of Wave-Particle Flip-Flop, Deleted Exercises are 11.5, 11.7, 11.12 to 11.14, 11.16, 11.17, 11.19–11.37. |
| Atoms |
Spectral Series, Bohr Model of the Hydrogen Atom (retain only the expression for radius of nth possible orbit but delete its derivation), he Line Spectra of the Hydrogen Atom (retain only qualitative treatment), Deleted Exercises are 12.3,12.11–12.17. |
| Nuclei |
Law of Radioactive Decay, Alpha Decay, Beta Decay, Gamma Decay, Nuclear Reactor, Deleted Exercises are 13.1, 13.2, 13.6–13.10, 13.12–13.14, 13.18, 13.22–13.31. |
| Semiconductor Electronics: Material Devices and Simple Circuits | Special Purpose p-n junction Diodes, Digital Electronics and Logic Gates, Deleted Exercises are from 14.7–14.15. |
Also Read: CBSE Class 12 Date Sheet
CBSE Class 12 Physics Deleted Experiments
Students must also check the table below to note the list of deleted experiments from Sections A and B.
| Section | Deleted Experiments List |
| Section A |
To compare the EMF of two given primary cells using a potentiometer. To determine the internal resistance of a given primary cell using a potentiometer. |
| Section B |
To draw the characteristic curve of a Zener diode and to determine its reverse breaks down voltage. To determine the wavelength of a laser beam by diffraction. |
CBSE Class 12 Physics Deleted Activities
Authorities have deleted a single activity under the CBSE class 12 physics deleted syllabus. Candidates can check the table below to know class 12 physics deleted syllabus 2025
| Particulars | Deleted Activity (For Demonstration only) |
| CBSE Class 12 Physics Deleted Activities | To observe the polarisation of light using two Polaroids. |
CBSE Class 12 Physics Deleted Investigatory Projects
Additionally, authorities have deleted an investigatory project, details of which are available in the table below.
| Particulars | Deleted Suggested Investigatory Project |
| CBSE Class 12 Physics Deleted Project | To design an appropriate logic gate combination for a given truth table. |
Updated CBSE Class 12 Physics Syllabus 2024-25 PDF
In summary, students can click the link below to download the updates CBSE class 12 physics syllabus 2024-25. Moreover, all details, including chapters, units, practical exam guidelines, exam pattern, paper pattern and more, are available in the official syllabus.
| Particulars | PDF Link |
| Class 12 Physics Syllabus 2024-25 PDF | Click Here |
CBSE Class 12 Updated Course Structure
CBSE class 12 students will be evaluated on a total of 100 marks, with 70 marks in theory and 30 marks for practical. The table showcases the updated CBSE class 12 course structure.
| Typology of Questions | Total Marks |
Approximate Percentage |
| Remembering: Exhibit memory of previously learned material by recalling facts, terms, basic concepts, and answers. Understanding: Demonstrate understanding of facts and ideas by organising, comparing, translating, interpreting, giving descriptions, and stating main ideas |
27 | 38% |
| Applying: Solve problems in new situations by applying acquired knowledge, facts, techniques and rules in a different way. | 22 | 32% |
| Analysing: Examine and break information into parts by identifying motives or causes. Make inferences and find evidence to support generalisations Evaluating: Present and defend opinions by making judgments about information, validity of ideas, or quality of work based on a set of criteria. Creating: Compile information together in a different way by combining elements in a new pattern or proposing alternative solutions. |
21 | 30% |
| Total Marks | 70 | 100 |
| Practical | 30 | - |
| Gross Total | 100 | - |
Reasons Behind Physics Deleted Syllabus Class 12 CBSE 2024-25
Authorities decided to eliminate topics to restructure and rationalize as a part of the deleted syllabus of class 12 CBSE 2024-25 physics. Therefore, there are many valid reasons behind the Physics deleted syllabus class 12 CBSE 2024-25.
- The Physics deleted syllabus class 12 CBSE 2024-25 was implemented after authorities discovered that specific topics were being studied in other subject areas in different classes.
- Reassessment of the difficulty level of the physics paper, which is why authorities had to come up with it.
- Updating the CBSE Class 12 Physics deleted syllabus focuses on self-learning and does not require external support when learning.
- The rationalization process also eliminated outdated topics in the deleted physics class 12 syllabus 2024-25.
Also Read: CBSE Class 12th Half Yearly Question Papers
Benefits of the Physics Deleted Syllabus Class 12 CBSE 2024-25
At the same time, students can recognize that the Board has deleted topics of physics class 12 from the syllabus to benefit the students.
- Firstly, students will find the updated curriculum more relaxed and flexible after implementing the CBSE Class 12 physics deleted syllabus 2024-25.
- With the Physics deleted syllabus class 12 CBSE 2024-25, students can focus on essential topics, leading to better productivity.
- Students can learn the existing topics independently and do not require teachers or peers to guide them through the deleted syllabus of class 12 Physics 2024-25.
- The current curriculum focuses on concepts that are current with present-day scenarios.
Also Read: CBSE Class 12 Physics Preparation Tips
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