ClassApna

Study Notes

Physics Class 11 & 12 Notes

Chapter-wise Class 11 and 12 physics, chemistry, maths and biology notes from Narayan Gurukul Academy, Mohali — real formulas rendered properly, exam pointers, and worked numericals for CBSE, JEE and NEET. All notes are free to read and download, no signup required. New chapters are added regularly.

Filtered notes

30 notes in Physics

Showing 1–24 of 30. Free to read and download — updated with new chapters every few weeks.

PhysicsClass 12

Semiconductor Electronics Class 12 Notes

Class 12 Physics Semiconductor Electronics notes: energy bands, doping, p-n junction diode, rectifiers, LED, photodiode, solar cell, transistors and logic gates — with key formulas for CBSE, JEE and NEET.

CBSE Class 12 · JEE Main & Advanced · NEET
PhysicsClass 12

Nuclei Class 12 Notes

Class 12 Physics Nuclei notes: nuclear composition and size, mass defect, binding energy curve, radioactivity and decay laws, half-life, fission and fusion — with key formulas for CBSE, JEE and NEET.

CBSE Class 12 · JEE Main & Advanced · NEET
PhysicsClass 12

Atoms Class 12 Notes (Modern Physics)

Class 12 Physics Atoms notes: Rutherford and Bohr models, energy levels, hydrogen spectra and de Broglie wavelength — with key formulas and solved JEE/NEET examples for modern physics.

CBSE Class 12 · JEE Main & Advanced · NEET
PhysicsClass 12

Dual Nature of Radiation and Matter Class 12 Notes

Class 12 Physics Dual Nature of Radiation and Matter notes: photoelectric effect, Einstein's equation, stopping potential, de Broglie wavelength and Davisson-Germer — with key formulas for CBSE, JEE and NEET.

CBSE Class 12 · JEE Main & Advanced · NEET
PhysicsClass 12

Wave Optics Class 12 Notes

Class 12 Physics Wave Optics notes: Huygens principle, interference, Young's double-slit experiment, diffraction and polarisation — with key formulas and solved JEE/NEET examples.

CBSE Class 12 · JEE Main & Advanced · NEET
PhysicsClass 12

Ray Optics and Optical Instruments Class 12 Physics Notes

Ray Optics and Optical Instruments — Class 12 Physics notes: mark-wise board questions, solved NCERT numericals, JEE/NEET examples, key formulas and a mock test.

CBSE Class 12 · JEE Main & Advanced · NEET
PhysicsClass 12

Electromagnetic Waves Class 12 Notes

Class 12 Physics Electromagnetic Waves notes: displacement current, Maxwell's equations, properties of EM waves, energy and the EM spectrum — with key formulas for CBSE, JEE and NEET.

CBSE Class 12 · JEE Main & Advanced · NEET
PhysicsClass 12

Alternating Current Class 12 Physics Notes

Class 12 Physics Alternating Current notes: RMS value, LCR circuits, impedance, resonance, power and power factor, LC oscillations — with key formulas and solved JEE/NEET examples.

CBSE Class 12 · JEE Main & Advanced · NEET
PhysicsClass 12

Electromagnetic Induction Class 12 Physics Notes

Class 12 Physics Electromagnetic Induction notes: Faraday's law, Lenz's law, motional EMF, self and mutual inductance, transformer — with key formulas and solved JEE/NEET examples.

CBSE Class 12 · JEE Main & Advanced · NEET
PhysicsClass 12

Magnetism and Matter Class 12 Physics Notes

Class 12 Physics Magnetism and Matter notes: magnetic dipoles, bar magnet, magnetic materials, dia/para/ferromagnetism and Earth's magnetism — with key formulas and solved JEE/NEET examples.

CBSE Class 12 · JEE Main & Advanced · NEET
PhysicsClass 12

Moving Charges and Magnetism Class 12 Physics Notes

Class 12 Physics Moving Charges and Magnetism notes: Lorentz force, Biot-Savart law, Ampere's law, solenoid, galvanometer and cyclotron — with key formulas and solved JEE/NEET examples.

CBSE Class 12 · JEE Main & Advanced · NEET
PhysicsClass 12

Current Electricity Class 12 Physics Notes

Free Current Electricity Class 12 Physics notes PDF: Ohm's law, resistance and resistivity, drift velocity, series–parallel combinations, Kirchhoff's laws, Wheatstone and metre bridge, cells and internal resistance, ammeter and voltmeter, and the potentiometer — with mark-wise question banks, solved examples and mock tests for CBSE, JEE & NEET. No signup required.

CBSE Class 12 · JEE Main & Advanced · NEET
PhysicsClass 12

Electrostatic Potential and Capacitance Class 12 Physics Notes

Class 12 Physics Electrostatic Potential and Capacitance notes: potential, equipotential surfaces, capacitors, dielectrics and energy stored — with key formulas and solved JEE/NEET examples.

CBSE Class 12 · JEE Main & Advanced · NEET
PhysicsClass 12

Electric Charges and Fields Class 12 Notes

Electric Charges and Fields — Class 12 Physics notes: mark-wise board questions, solved NCERT numericals, JEE/NEET examples, key formulas and a mock test.

CBSE Class 12 · JEE Main & Advanced · NEET
PhysicsClass 11

Waves Class 11 Physics Notes — Free PDF, Formulas & 40 MCQs

Class 11 Physics Waves notes — free PDF, no signup. Wave motion, speed of sound, standing waves, beats & Doppler effect with formulas, solved numericals & MCQs.

CBSE Class 11 · JEE Main & Advanced · NEET
PhysicsClass 11

Oscillations Class 11 Physics Notes

Class 11 Physics Oscillations notes: SHM, spring and pendulum, energy in SHM, damped and forced oscillations, resonance — with key formulas and solved JEE/NEET examples.

CBSE Class 11 · JEE Main & Advanced · NEET
PhysicsClass 11

Kinetic Theory Class 11 Physics Notes — Free PDF, Formulas & MCQs

Class 11 Physics Kinetic Theory notes — free PDF, no signup. Gas assumptions, RMS speed, degrees of freedom & specific heat with formulas, solved MCQs.

CBSE Class 11 · JEE Main & Advanced · NEET
PhysicsClass 11

Thermodynamics Class 11 Physics Notes — Free PDF, Formulas & MCQs

Class 11 Physics Thermodynamics notes — free PDF, no signup. First & second law, heat engines, specific heats with formulas, solved numericals & MCQs.

CBSE Class 11 · JEE Main & Advanced · NEET
PhysicsClass 11

Thermal Properties of Matter Class 11 Physics Notes

Class 11 Physics Thermal Properties of Matter notes: heat and temperature scales, thermal expansion of solids and liquids, calorimetry and specific heat, change of state and latent heat, heat transfer by conduction, convection and radiation, and the Stefan-Boltzmann law — with key formulas and solved CBSE/JEE/NEET examples.

CBSE Class 11 · JEE Main & Advanced · NEET
PhysicsClass 11

Mechanical Properties of Fluids Class 11 Physics Notes

Class 11 Physics Mechanical Properties of Fluids notes: pressure and its variation with depth, Pascal's law, Archimedes' principle, streamline and turbulent flow, Bernoulli's principle, viscosity and surface tension — with key formulas and solved CBSE/JEE/NEET examples.

CBSE Class 11 · JEE Main & Advanced · NEET
PhysicsClass 11

Mechanical Properties of Solids Class 11 Physics Notes

Class 11 Physics Mechanical Properties of Solids notes: stress and strain, Hooke's law, Young's modulus, shear and bulk moduli, Poisson's ratio, elastic potential energy and applications — with key formulas and solved CBSE/JEE/NEET examples.

CBSE Class 11 · JEE Main & Advanced · NEET
PhysicsClass 11

Gravitation Class 11 Physics Notes

Class 11 Physics Gravitation notes: universal law of gravitation, g and its variation, gravitational potential and energy, escape velocity, Kepler's laws and satellites — with key formulas and solved examples for CBSE, JEE and NEET.

CBSE Class 11 · JEE Main & Advanced · NEET
PhysicsClass 11

System of Particles and Rotational Motion Class 11 Physics Notes

Class 11 Physics System of Particles and Rotational Motion notes: centre of mass, torque, angular momentum, moment of inertia and the theorems of parallel and perpendicular axes, and rolling motion — with key formulas and solved CBSE/JEE/NEET examples.

CBSE Class 11 · JEE Main & Advanced · NEET
PhysicsClass 11

Work, Energy and Power Class 11 Physics Notes

Work, Energy and Power Class 11 notes: scalar product, work–energy theorem, kinetic and potential energy, conservation of mechanical energy, spring energy, power and collisions with solved examples for CBSE, JEE and NEET.

CBSE Class 11 · JEE Main & Advanced · NEET

Want notes for your chapter?

We pick the next chapters from what students actually struggle with. Take a free branch test or join a demo class and tell us which chapter to write next.