CBSE has deleted some topics from Physics syllabus including Electrical Resistance, Cyclotron, LC oscillations, Eddy Currents, Brewster's law, and more. Check here CBSE class 12 physics deleted syllabus 2025-26 and download revised syllabus.
The Central Board of Secondary Education (CBSE) has released the revised CBSE class 12 Physics syllabus 2025-26. As per the latest curriculum, the board has deleted some topics from the syllabus. Some of the issues from the CBSE class 12 Physics deleted syllabus 2025-26 include Electrical Resistance, Cyclotron, LC oscillations, Eddy Currents, Brewster's law, etc. Candidates can download the updated syllabus PDF from the official website, i.e., cbse.gov.in, or from this page.
Candidates need to go through the revised syllabus before starting their preparation for the CBSE Class 12 Exam 2026. This article covers complete details about the CBSE class 12 Physics deleted syllabus 2026.
CBSE Class 12 Physics Deleted Syllabus 2025-26
Before starting with the board exam preparation, candidates must go through the detailed deleted topics. Candidates can check from the table below the CBSE class 12 Physics deleted syllabus 2026:
| Topics | Chapters | Deleted Topics |
| Current Electricity | Chapter - 3: Current Electricity | Electrical Resistance, Carbon resistors, colour code for carbon resistors; series and parallel combinations of resistors, metre bridge, Potentiometer - principle and its applications to measure potential difference and for comparing EMF of two cells; measurement of internal resistance of a cell |
| Magnetic Effects of Current and Magnetism | Chapter - 4: Moving Charges and Magnetism | Cyclotron |
| Magnetic Effects of Current and Magnetism | Chapter - 5: Magnetism and Matter | magnetic dipole moment of a revolving electron |
| Electromagnetic Induction and Alternating Currents | Chapter - 6: Electromagnetic Induction | Eddy currents |
| Electromagnetic Induction and Alternating Currents | Chapter - 7: Alternating Current | LC oscillations |
| Optics | Chapter - 9: Ray Optics and Optical Instruments | Scattering of the light-blue colour of the sky and the reddish appearance of the sun at sunrise and sunset |
| Optics | Chapter - 10: Wave Optics | resolving power of microscope and astronomical telescope, Polarisation, plane polarised light, Brewster's law, uses of plane polarised light and Polaroids |
| Dual Nature of Radiation and Matter | Chapter 11: Dual Nature of Radiation and Matter | Davisson-Germer experiment |
| Atoms and Nuclei | Chapter - 13: Nuclei | Radioactivity, alpha, beta, and gamma particles/rays, and their properties; radioactive decay law. |
| Electronic Devices | Chapter - 14: Semiconductor Electronics: Materials, Devices and Simple Circuits | Special-purpose p-n junction diodes: LED, photodiode, solar cell, and Zener diode and their characteristics, Zener diode as a voltage regulator |
Candidates can also click on the link below to download the CBSE class 12 Physics deleted syllabus 2025-26:
| CBSE Class 12 Physics Deleted Syllabus 2025-26 PDF |
CBSE Class 12 Physics Deleted Syllabus 2026 - Experiments
Students must also check the table below to note the list of deleted experiments from Sections A and B.
| 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 breakdown voltage. To determine the wavelength of a laser beam by diffraction. |
Also Read: CBSE Class 12 Date Sheet
CBSE Class 12 Physics Deleted Syllabus 2026 - Activities
Authorities have removed a single activity from the CBSE class 12 physics deleted syllabus. Candidates can check the table below to know the class 12 physics deleted syllabus 2026
| 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 Syllabus 2026 - Investigatory Projects
As per the CBSE class 12 Physics deleted syllabus 2026, 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. |
CBSE Class 12 Physics Syllabus 2025-26 (Updated PDF)
Candidates can click on the link provided below to download the updated CBSE class 12 Physics syllabus 2025-26:
| CBSE Class 12 Physics Syllabus 2025-26 PDF Download |
Also Read: CBSE Class 12 Physics Preparation Tips
How to Download CBSE Class 12 Physics Deleted Syllabus 2025-26
Candidates can follow the steps mentioned below to download the CBSE class 12 Physics deleted syllabus 2026:
- Step 1: Visit the official website of CBSE at cbse.gov.in.
- Step 2: Go to the 'Academic Website' section.
- Step 3: On the main page, click on the 'Curriculum' option on the navigation bar. From the drop-down menu, select the 'Curriculum 2025-26' option.
- Step 4: A new page will appear. Click on the 'Senior Secondary Curriculum (XI-XII)' option.
- Step 5: From the menu that opens, select 'Academic Electives - (Group-A)'
- Step 6: Click on the Physics link.
- Step 7: A PDF will open. Save the CBSE class 12 Physics syllabus 2025-26 for future reference.
Also Read: CBSE Class 12th Half Yearly Question Papers
Benefits of CBSE Class 12 Physics Deleted Syllabus 2026
At the same time, students can recognise 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 2025-26.
- With the Physics deleted syllabus class 12 CBSE 2025-26, 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 2025-26.
- The current curriculum focuses on concepts that are current with present-day scenarios.
-
CBSE Class 12 Physics syllabus revised for 2025-26. -
Many significant topics have been removed. -
Download updated syllabus PDF from cbse.gov.in. -
Key deletions include Cyclotron, Eddy Currents, Brewster's law.
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