LIVE

LIVE: CBSE 12 Physics Exam 2026 on February 20; Last-Minute Preparation Topics & Weightage Details

Students preparing for the CBSE Class 12 Physics 2026 Examination can access the Last-Minute Preparation Topics & Weightage Details available here.

Mohith Kumar

Updated on - Feb 19, 2026 | 12:58:00 PM

Check CBSE 12 Physics Exam 2026 Last-Minute Preparation Tips Here.

CBSE 12 Physics Exam 2026 Last Minute Preparation Topics: The CBSE Class 12 Physics Board Exam for the 2025-26 academic session is scheduled for Friday, February 20, 2026. The exam will be conducted from 10:30 AM to 1:30 PM. The CBSE Class 12 Physics Theory Examination will be held for 70 marks. The question paper will consist of 33 compulsory questions divided into five sections (A–E). While there is no overall choice, approximately 33% internal choices are provided within sections. Students preparing for the CBSE Class 12 Physics Examination can access the CBSE 12 Physics Exam 2026 last-minute preparation topics and weightage details available here.

Want to ace the CBSE 12 Physics Exam? Check the 30 Definitions for 28+ Marks in CBSE Class 12 Physics Exam 2026.

CBSE 12 Physics Exam 2026 Last Minute Preparation Topics

Check the CBSE Class 12 Physics Exam last minute preparation topics below. Prioritise these units to cover approximately 70% of the theory marks:

Optics (18 Marks): The highest-scoring unit. Focus on Lens Maker’s Formula, Young's Double Slit Experiment (YDSE), and ray diagrams for microscopes and telescopes.
Magnetic Effects & Magnetism (17 Marks): Key topics include Moving Coil Galvanometer (principle and conversion), Ampere’s Circuital Law, and force on a moving charge.
Electrostatics (16 Marks): Focus on Gauss’s Law applications, Capacitance of a Parallel Plate Capacitor (with dielectric), and Electric Potential.
Modern Physics (12 Marks): Einstein’s Photoelectric Equation, Bohr’s Atomic Model (energy levels), and Binding Energy curve.
Semiconductors (7 Marks): Logic gates (NAND/NOR as universal gates), Full-wave Rectifier circuit diagrams, and P-N junction characteristics.

CBSE 12 Physics Exam 2026: Weightage Details

The chapter-wise CBSE Class 12 Physics Weightage details are given below.

Units	Unit Names	Chapters	Weightage
1 and 2	Electrostatics and Current Electricity	Electric Charges & Fields, Electrostatic Potential & Capacitance, Current Electricity	16
3 and 4	Magnetism, EMI and AC	Moving Charges & Magnetism, Magnetism & Matter, Electromagnetic Induction, Alternating Current	17
5 and 6	EM Waves and Optics	Electromagnetic Waves, Ray Optics & Optical Instruments, Wave Optics	18
7 and 8	Modern Physics	Dual Nature of Radiation & Matter, Atoms, Nuclei	12
9	Electronic Devices	Semiconductor Electronics: Materials, Devices & Simple Circuits	07
Total			70

Students are advised to go through the entire CBSE Class 12 Physics Syllabus and refer to the NCERT textbook for better preparations along with the above given topics.

Live Updates

February 19, 2026 | 12:58 PM IST

CBSE Class 12 Physics Important Examination Rules

No Calculators: The use of calculators was strictly prohibited; all numerical calculations had to be done manually.
Internal Choices: Internal choices were provided in Sections B, C, and E to help students manage difficult topics.
Step Marking: Marks were awarded for each logical step and correct use of scientific units, even if the final answer was incorrect.

February 19, 2026 | 12:54 PM IST

CBSE Class 12 Physics 2026 Unit-Wise Marks Distribution (Theory)

Units	Important Topics	Weightage
Optics	Lens Maker's Formula, YDSE, Prism Refraction	18 Marks
Magnetic Effects	Ampere's Law, Moving Coil Galvanometer, AC	17 Marks
Electrostatics	Gauss's Law, Capacitance, Electric Potential	16 Marks
Current Electricity	Kirchhoff’s Laws, Drift Velocity, Potentiometer	16 Marks
Modern Physics	Photoelectric Effect, Bohr Model, Nuclei	12 Marks
Electronic Devices	p-n Junction Diode, Rectifiers, Energy Bands	7 Marks

February 19, 2026 | 12:10 PM IST

CBSE 2026 Digital Evaluation

CBSE implemented on-screen marking for the 2026 exams, where scanned answer sheets were evaluated digitally to ensure faster and more accurate results.

February 19, 2026 | 11:57 AM IST

Increased Competency Weightage

In line with the National Education Policy (NEP) 2020, 50% of the questions will be competency-focused, including case-based and data-interpretation problems.

February 19, 2026 | 11:46 AM IST

CBSE 12 Physics Exam 2026 Question Paper Structure

The exam followed a 70-mark theory and 30-mark practical distribution.