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CBSE 12 Physics Board Exam 2025 : Important Derivations for Revision (All Chapters)

CBSE 12th exams are underway and your CBSE 12th Physics exam is scheduled on 21th Feb, 2025. You have just a few hours left for CBSE 12th Physics exam.

We know how important it is to focus on the right topics and questions during revision so this article provides details of important CBSE 12th Physics Important Derivations along with answers for last minute revision.

👉 Read Also - CBSE 12 Physics Board Exam 2025 Important Sure Shot Questions

CBSE Class 12 Physics Important Derivations for 2025 Board Exams

Physics derivations play a crucial role in understanding concepts across electromagnetism, optics, and modern physics. Many board exam questions are directly or indirectly based on these derivations, making them a scoring area for well-prepared students.

Here’s a chapter-wise list of important Physics derivations for the CBSE Class 12 Board Exam 2025:

CBSE Class 12 Physics Important Derivations For 2025 Exams
Chapter Important Derivations
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

👉 Read Also - CBSE Class 12 Physics Exam 2025: Important Questions, PYQs & Sample Papers

👉 Read Also - CBSE Class 12 Physics Board Exam 2025 : Most Repeated Questions from Last 12 Years; Download PDF

👉 Read Also - CBSE Class 12 Physics Board Exam 2025: Repeated Questions in Previous Board Exams

👉 CBSE Class 12 Study Materials

CBSE Class 12 Syllabus 2024-25 CBSE Class 12 Previous Year Papers
NCERT Books For Class 12 Books NCERT Class 12 Solutions
CBSE Class 12 Full Study Material CBSE Class 12 Sample Paper 2024-25

 

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