CBSE Class 12 Physics Important Derivations: Physics derivations are the backbone of concepts in electromagnetism, optics, modern physics, and many other chapters. They test your understanding of the fundamentals and your ability to logically apply concepts. Many questions in board exams are directly or indirectly based on these derivations, making them a scoring area.
CBSE also asks direct questions on derivations which becomes the scoring part for students who have properly practiced the step-by-step derivation of formulas. Check the chapters and topics of CBSE Class 12 Physics which will frame important derivation questions in 2025 board exams.
Recent | CBSE Topper Answer Sheet Class 12 Physics 2025
Check | CBSE Date Sheet 2025
CBSE Class 12 Physics Important Derivations For 2025 Exams
Ch -1 Electric Charges and Fields
- Application of Gauss’s theorem
- Electric Field due to dipole
- Electric field in Uniform External Field
Ch-2 Electric Potential and Capacitance
- Electric dipole due to Electric Field
- Potential Energy of System of two point charges in external field
- Effect of dielectric on capacitance
- The parallel plate capacitor
Ch-3 Current Electricity
- Drift Velocity and Deduction of Ohm’s Law from drift velocity
- Combinations of cell
Ch-4 Moving Charges and Magnetism
- Magnetic field due to current carrying circular loop on its axis
- Magnetic field due to infinitely long straight wire
- Force between two parallel current carrying conductors
- Torque experienced by a current loop in Uniform Magnetic Field
Ch-5 Magnetism and Matter
- No derivation
Ch-6 Electromagnetic Induction
- Inductance , Energy stored in an Inductor
Ch-7 Alternating Current
- Series LCR circuit
- Power in an AC circuit
Ch-8 Electromagnetic Waves
- No Derivation
Ch-9 Ray Optics
- Mirror Formula
- Refraction at spherical surfaces
- Lens Maker’s formula
- Combination of thin lenses in contact {Power derivation}
- Refraction through Prism
- Optical Instruments
Ch-10 Wave Optics
- Proof of laws of Refraction & Reflection using Huygens's Law
- Interference
Ch-11 Dual Nature of Radiation and Matter
- Einstein’s Photoelectric equation
Ch-12 ATOMS
- Bohr’s Model of Hydrogen atom
Ch-13 Nuclei
- No Derivation
Ch-14 Semiconductor Electronics
- Conductivity of Semiconductor
What Is a Derivation?
A derivation is a step-by-step explanation of how a formula or equation is developed using basic principles, laws, or formulas. It helps us understand where the formula comes from and how it works. For example, when we derive the formula for the area of a circle, we use simple steps based on the radius and pi (π). Derivations are important because they show the logic behind the formulas we use, making it easier to apply them in different situations.
How to Master CBSE Class 12 Physics Derivations?
Follow these topics to understand and learn the derivations easily:
- Before jumping into derivations, ensure you are clear on fundamental concepts and formulas.
- Repeatedly write down derivations to improve recall and presentation.
- Diagrams and flowcharts can make derivations easier to understand and remember.
- In board exams, neat and well-structured derivations with labelled diagrams fetch higher marks.
Also Check:
NCERT Resources
Comments
All Comments (0)
Join the conversation