CBSE Physics Formula Chapter‑Wise (2025‑26) – Complete Guide

Physics is one of the most formula‑intensive subjects in the CBSE Class 11 & 12 curriculum. To score high marks in board exams and prepare effectively for competitive exams such as JEE and NEET, students must have a strong grasp of chapter‑wise formulas, especially for topics like Units, Constants & Conversions.

A well‑organized formula sheet PDF helps students revise quickly without flipping through pages of textbooks. The formulas include standard units, physical constants, methods of dimensional analysis, converting between units, and keys to quick solutions for numerical problems. These resources save time, strengthen foundational concepts, and improve accuracy during exams.

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► Click “Download Here” next to your subject to access the free PDF.

Why Use a Chapter‑Wise Physics Formula PDF?

A chapter‑wise formula PDF is essential because:

• It gathers all crucial physics equations and relationships in one place.

• Helps in fast revision before exams.

• Improves retention of units and constants that frequently appear in numerical problems.

• Saves students’ time from searching individual formulas across different sources.

• Supports both board and competitive exam preparation.

Students can use these formulas as a quick revision tool before their CBSE board exams 2025‑26.

Units, Constants & Conversions: What You Must Know

The chapter on Units, Constants & Conversions forms the foundation of physics problem‑solving. It focuses on:

1. SI Units and Measurement

• SI unit system fundamentals.

• Definitions of base and derived units.

• Rules for measurement and errors.

2. Physical Constants

• Constants such as speed of light (c), Planck’s constant (h), gravitational constant (G), etc.

3. Conversions Between Units

• Conversions between metric units.

• Prefixes such as kilo (k), milli (m), micro (μ), etc.

• Dimensional analysis and checking correctness of equations.

These basics are required in both theoretical questions and numerical problems.

Download Free Physics Formula PDFs from StudentBro.in

Here are the direct links to the StudentBro.in resources that include physics formulas and topic notes:

Physics Formula from StudentBro.in
Physics section with downloadable PDFs and chapter‑wise resources: Units, Constants, and Conversions

In some sections of StudentBro.in, you will find topic PDFs and materials that include formulas relevant to the syllabus and more general notes that help with clear understanding and revision.

What Does This Formula Sheet Include?

The CBSE Physics Formula PDF usually includes formulas under the following headings:

Units and Measurements

• SI base units.

• Derived units.

• Dimensional formulas.

• Percentage error and significant figures.

Physical Constants

• Values of important constants like:

  • Speed of Light (c),

  • Planck’s constant (h),

  • Boltzmann constant,

  • Value of g (acceleration due to gravity),
    and many more commonly applied constants.

Conversions

• Conversion techniques between units (metric to SI and vice versa).

• Relationships between units (e.g., energy in Joules to electron‑volt scaling).

• Rules for converting units in equations.

How to Use the Physics Formula Sheet

Follow these steps for maximum benefit:

• Study chapter‑wise: Cover formulas one chapter at a time.

• Understand units: Don’t just memorize numerical values; learn how units interrelate.

• Practice problems: Apply formulas in solving examples and past year questions.

• Revision: Carry the PDF for quick daily revision sessions.

Example Topics Covered (Chapter‑Wise)

While the main focus here is on Units, Constants & Conversions, a comprehensive formula resource should typically include the following broader chapters (reference syllabus):

Units and Measurement

• Base and derived units.

• Uncertainty and error estimation.

• Dimensional analysis techniques.

Motion and Mechanics

• Kinematic equations.

• Laws of motion and work‑energy relations.

Rotational Motion

• Torque, angular momentum.

Waves and Oscillations

• Wave velocity.

• Frequency, period formulas.

Heat and Thermodynamics

• Heat transfer equations.

• Carnot efficiency relations.

Electrostatics and Magnetism

• Coulomb’s law,

• Electric field and potential relations,

• Ampere’s law applications.

Optics

• Lens and mirror formulas,

• Refractive index and wave relations.

These chapters are essential for both board exams and entrance tests and often include formula references alongside physical interpretations.

Benefits of Using the StudentBro.in Resource

• Organized by topic for better understanding.

• Designed to fit the CBSE 2025‑26 syllabus and trends.

• Provides downloadable links for offline study.

• Easy to revise before exams.

StudentBro.in offers reliable, syllabus‑aligned notes and resource links that complement formula sheets and conceptual summaries.

Preparing for Board and Competitive Exams

A correct formula sheet helps in:

• Quick revision before exams.

• Resolving numerical problems accurately.

• Understanding the practical implications of physical constants and units.

• Improving speed and confidence in solving questions.

Tips to Master Physics Formulas

• Write down formulas on flashcards.

• Group related formulas together (e.g., mechanics, electromagnetism).

• Solve numerical problems after reading each formula.

• Regular revision — keep revisiting formulas weekly.

This complete guide and formula sheet will help students focus on what matters — mastering the key physics principles and formulas for the CBSE 2025‑26 board exams. Use the StudentBro.in links above to download the most relevant resources and excel in your preparation.