# CBSE Revision Notes for class 12 Physics

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## CBSE Revision Notes for class 12 Physics

CBSE revision notes for class 12 Physics NCERT chapter wise notes of 12th Physics CBSE key points and chapter summary for 12 Physics all chapters in PDF format for free download. CBSE short key notes and chapter notes for revision in exams. CBSE short notes of 12th class Physics. Summary of the chapter for class 12 Physics are available in PDF format for free download. These NCERT notes  are very helpful for CBSE board exam. CBSE recommends NCERT books and most of the questions in CBSE exam are asked from NCERT text books. These notes are based on latest NCERT syllabus and designed as per the new curriculum issued by CBSE for this session. Class 12 Physics chapter wise NCERT note for Physics part 1 and Physics part 2 for all the chapters can be downloaded from website and myCBSEguide mobile app for free.

Download CBSE Revision Notes for CBSE Class 12 Physics Term 1 - Electric Charges and Fields Class 12 physics subject Electric Charges; Conservation of charge, Coulomb's law-force between two point charges, forces between multiple charges; superposition principle and continuous charge distribution. Electric field, electric field due to a point charge, electric field lines, electric dipole, electric field due to a dipole, torque on a dipole in uniform electric field. Electric flux, statement of Gauss's theorem and its applications to find field due to infinitely long straight wire, uniformly charged infinite plane sheet and uniformly charged thin spherical shell (field inside and outside).

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Download CBSE Revision Notes for CBSE Class 12 Physics Term 1 - Electrostatic Potential and Capacitance CBSE class 12 Electric potential, potential difference, electric potential due to a point charge, a dipole and system of charges; equipotential surfaces, electrical potential energy of a system of two point charges and of electric dipole in an electrostatic field. Conductors and insulators, free charges and bound charges inside a conductor. Dielectrics and electric polarisation, capacitors and capacitance, combination of capacitors in series and in parallel, capacitance of a parallel plate capacitor with and without dielectric medium between the plates, energy stored in a capacitor.

Download CBSE Revision Notes for CBSE Class 12 Physics Term 1 - Current Electricity CBSE class 12 subject physics download syllabus. Electric current, flow of electric charges in a metallic conductor, drift velocity, mobility and their relation with electric current; Ohm's law, electrical resistance, V-I characteristics (linear and non-linear), electrical energy and power, electrical resistivity and conductivity, Carbon resistors, colour code for carbon resistors; series and parallel combinations of resistors; temperature dependence of resistance. Internal resistance of a cell, potential difference and emf of a cell, combination of cells in series and in parallel, Kirchhoff's laws and simple applications, Wheatstone bridge, metre bridge. Potentiometer - principle and its applications to measure potential difference and for comparing EMF of two cells; measurement of internal resistance of a cell.

Download CBSE Revision Notes for CBSE Class 12 Physics Term 1 - Moving Charges and Magnetism Class 12 Physics Concept of magnetic field, Oersted's experiment. Biot - Savart law and its application to current carrying circular loop. Ampere's law and its applications to infinitely long straight wire. Straight and toroidal solenoids (only qualitative treatment), force on a moving charge in uniform magnetic and electric fields, Cyclotron. Force on a current-carrying conductor in a uniform magnetic field, force between two parallel current-carrying conductors-definition of ampere, torque experienced by a current loop in uniform magnetic field; moving coil galvanometer-its current sensitivity and conversion to ammeter and voltmeter.

Download CBSE Revision Notes for CBSE Class 12 Physics Term 1 - Magnetism and Matter Class 12 cbse physics subject Current loop as a magnetic dipole and its magnetic dipole moment, magnetic dipole moment of a revolving electron, magnetic field intensity due to a magnetic dipole (bar magnet) along its axis and perpendicular to its axis, torque on a magnetic dipole (bar magnet) in a uniform magnetic field; bar magnet as an equivalent solenoid, magnetic field lines; earth's magnetic field and magnetic elements. Para-, dia- and ferro - magnetic substances, with examples. Electromagnets and factors affecting their strengths, permanent magnets.

Download CBSE Revision Notes for CBSE Class 12 Physics Term 1 - Electromagnetic Induction Electromagnetic induction; Faraday's laws, induced EMF and current; Lenz's Law, Eddy currents. Self and mutual induction.

Download CBSE Revision Notes for CBSE Class 12 Physics Term 1 - Alternating Current Alternating currents, peak and RMS value of alternating current/voltage; reactance and impedance; LC oscillations (qualitative treatment only), LCR series circuit, resonance; power in AC circuits, wattless current. AC generator and transformer.

Download CBSE Revision Notes for CBSE Class 12 Physics Term 2 - Electromagnetic Waves Electromagnetic Waves Basic idea of displacement current, Electromagnetic waves, their characteristics, their Transverse nature (qualitative ideas only). Electromagnetic spectrum (radio waves, microwaves, infrared, visible, ultraviolet, X-rays, gamma rays) including elementary facts about their uses.

Download CBSE Revision Notes for CBSE Class 12 Physics Term 2 - Ray Optics and Optical Ray Optics: Reflection of light, spherical mirrors, mirror formula, refraction of light, total internal reflection and its applications, optical fibres, refraction at spherical surfaces, lenses, thin lens formula, lensmaker's formula, magnification, power of a lens, combination of thin lenses in contact, combination of a lens and a mirror, refraction and dispersion of light through a prism. Scattering of light - blue colour of sky and reddish apprearance of the sun at sunrise and sunset. Optical instruments: Microscopes and astronomical telescopes (reflecting and refracting) and their magnifying powers.

Download CBSE Revision Notes for CBSE Class 12 Physics Term 2 - Wave Optics Wave optics: Wave front and Huygen's principle, reflection and refraction of plane wave at a plane surface using wave fronts. Proof of laws of reflection and refraction using Huygen's principle. Interference, Young's double slit experiment and expression for fringe width, coherent sources and sustained interference of light, diffraction due to a single slit, width of central maximum, resolving power of microscope and astronomical telescope, polarisation, plane polarised light, Brewster's law, uses of plane polarised light and Polaroids.

Download CBSE Revision Notes for CBSE Class 12 Physics Term 2 - Dual Nature of Radiation and Matter Dual nature of radiation, Photoelectric effect, Hertz and Lenard's observations; Einstein's photoelectric equation-particle nature of light. Matter waves-wave nature of particles, de-Broglie relation, Davisson-Germer experiment (experimental details should be omitted; only conclusion should be explained).

Download CBSE Revision Notes for CBSE Class 12 Physics Term 2 - Atoms Alpha-particle scattering experiment; Rutherford's model of atom; Bohr model, energy levels, hydrogen spectrum.

Download CBSE Revision Notes for CBSE Class 12 Physics Term 2 - Nuclei Composition and size of nucleus, Radioactivity, alpha, beta and gamma particles/rays and their properties; radioactive decay law. Mass-energy relation, mass defect; binding energy per nucleon and its variation with mass number; nuclear fission, nuclear fusion.

Download CBSE Revision Notes for CBSE Class 12 Physics Term 2 - Electronic Devices Energy bands in conductors, semiconductors and insulators (qualitative ideas only) Semiconductor diode - I-V characteristics in forward and reverse bias, diode as a rectifier; Special purpose p-n junction diodes: LED, photodiode, solar cell and Zener diode and their characteristics, zener diode as a voltage regulator. Junction transistor, transistor action, characteristics of a transistor and transistor as an amplifier (common emitter configuration), basic idea of analog and digital signals, Logic gates (OR, AND, NOT, NAND and NOR).

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## CBSE Class12 Notes and Key Points

• CBSE Revision notes for Class 12 Physics PDF
• CBSE Revision notes Class 12 Physics – CBSE
• CBSE Revisions notes and Key Points Class 12 Physics
• Summary of the NCERT books all chapters in Physics class 12
• Short notes for CBSE class 12th Physics
• Key notes and chapter summary of Physics class 12
• Quick revision notes for CBSE board exams

## CBSE Class 12 Physics Chapter-wise Revision Notes

• Chapter 1 - Electric Charges and Fields
• Chapter 2 - Electrostatic Potential and Capacitance
• Chapter 3 - Current Electricity
• Chapter 4 - Moving Charges and Magnetism
• Chapter 5 - Magnetism and Matter
• Chapter 6 - Electromagnetic Induction
• Chapter 7 - Alternating Current
• Chapter 8 - Electromagnetic Waves
• Chapter 9 - Ray Optics and Optical Instruments
• Chapter 10 - Wave Optics
• Chapter 11 - Dual Nature of Radiation and Matter
• Chapter 12 - Atoms
• Chapter 13 - Nuclei
• Chapter 14 - Semiconductor Electronic: Material, Devices and Simple Circuits
• Chapter 15 - Communication Systems

Key Notes for CBSE Board Students for Class 12. Important topics of all subjects are given in these CBSE notes. These notes will provide you overview of the chapter and important points to remember. These are very useful summary notes with neatly explained examples for best revision of the book.

## CBSE Class-12 Revision Notes and Key Points

CBSE quick revision note for class-12 Physics, Chemistry, Maths, Biology and other subject are very helpful to revise the whole syllabus during exam days. The revision notes covers all important formulas and concepts given in the chapter. Even if you wish to have an overview of a chapter, quick revision notes are here to do if for you. These notes will certainly save your time during stressful exam days.

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