Physics Class 12 Physics Important Topics Class 12 CBSE Class 12
Physics Class 12 board Exam Class 12 Physics Board Exam 2020 is scheduled to be held in March. Check important topics and derivations which can be asked in CBSE Class 12 Physics Board Exam 2020.
All the topics mentioned in latest CBSE Class 12th Physics syllabus 2020 are important. But, after the analysis of some previous year papers of CBSE Class 12th

SBG Study Finds some important derivations, topics and questions which are very important for CBSE Class 12th Physics 2020 board exam.
Download Class 12 Previous Year papers and Best Notes class 12
Chapter 1: Electric Charges and Fields
- Definition of electric Flux , Field , Dipole moment and line draw of Electric field
- Gauss theorem and Its Derivation
- Numerical on ( Gauss theorem , Electric Dipole )
- Derivation on Electric Dipole on equatorial and Axial Position.
- Ncert Questions ( 7,9,11,12 )
Chapter 2: Electrostatic Potential and Capacitance
- Definition on Potential Difference, energy, Potential surface.
- Questions on DI-electric capacitor and Energy Stored in capacitor
- Numerical on Parallel plate capacitor
Chapter ‒ 3: Current Electricity
- Definitions of Drift velocity, Speed , Conductivity
- Kirchhoff law
- power Dissipation
- Meter bridge and Potentometer ( Working , principle )
Chapter – 4: Moving Charges and Magnetism
- Bio-savant Law & Ampere Circuital law
- Cyclotron and Moving coil galvanometer
- Magnetic field and Magnetic Lorentz Force
Chapter ‒ 5: Magnetism and Matter
- Magnetic Dipole Moment
- Classification of Magnet Substance
Chapter – 6: Electromagnetic Induction
- Faraday Law and Inductance
- Magnetic Flux
- AC Generation ( Principle and Working )
Chapter – 7: Alternating Current
- Basic Definition ( Quality factor )
- Transformer and its types ( Step Down & Step Up and Principle \ Diagram)
- Numerical on LCR
Chapter -8 : Electromagnetic waves
- Production of Electromagnetic waves & Spectrum
- EM waves Application & Uses
Chapter-9: Ray Optics and Optical Instruments
- Prism Formula and Lens maker Formula
- Angle of Derivation, Critical angle & Total internal reflection
- Compounding Microscope & Telescope
Chapter-10: Wave Optics
- Definitions of Wave front & Coherent Source
- Huygens Principle & Shell law & YDSE
- Polarization
Chapter-11: Dual Nature of Radiation and Matter
- Photo Electric Effect , Wave Theory
- De- Broglie Hypothesis , wave length
- Threshold Frequency and Intensity
Chapter-12: Atoms
- Bohr Postulates & Rutherford Model
- Energy Level Diagram
- Find Energy and Wavelength for different Excitation State
- Excitation State of Hydrogen
Chapter-13: Nuclei
- Binding Energy
- Nuclear fusion And Nuclear Fission ( Explain Process )
- Radioactive decay
- Binding Energy per Nucleon
Chapter -14: Semiconductor Electronics: Materials, Devices and Simple Circuits
- Zener Diode , Solor Cell And LED
- PN Junction
- I-V Characteristic in Forward and Reverse Bias