Study Notes
Chapter-by-chapter notes from Narayan Gurukul Academy, Mohali — real formulas rendered properly, exam pointers, and worked numericals. New chapters are added regularly.
Latest chapters
Chemistry is first. Physics, Maths and Biology chapters follow the same template.
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.
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.
Class 12 Chemistry Chemical Kinetics notes: rate law, order and molecularity, first-order reactions, half-life and the Arrhenius equation — with key formulas and solved JEE/NEET examples.
Class 12 Chemistry Electrochemistry notes: galvanic and electrolytic cells, electrode potentials, Nernst equation, conductance and electrolysis — with key formulas and solved JEE/NEET examples.
Complete Class 12 Physics notes chapter-wise: electric charges, potential, current electricity, magnetism, EMI, AC and ray optics — key formulas, FAQs and solved examples for CBSE, JEE and NEET.
Complete Class 11 Physics notes chapter-wise: units & measurements, laws of motion, motion in a plane, oscillations — key formulas, FAQs and solved examples for CBSE, JEE and NEET.
Complete Class 12 Chemistry notes chapter-wise: solid state, solutions, electrochemistry, kinetics, organic and inorganic chemistry — key formulas, FAQs and solved examples for CBSE, JEE and NEET.
Class 12 Physics Ray Optics notes: reflection and refraction, lens maker formula, power of lens, prisms, microscope and telescope — with key formulas and solved JEE/NEET examples.
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.
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.
Class 12 Physics Electrostatic Potential and Capacitance notes: potential, equipotential surfaces, capacitors, dielectrics and energy stored — with key formulas and solved JEE/NEET examples.
Class 11 Physics Motion in a Plane notes: vectors, projectile motion, uniform circular motion — with key formulas and solved JEE/NEET examples.
Class 11 Physics Laws of Motion notes: Newton's three laws, impulse-momentum, friction, circular motion and banking of roads — with key formulas and solved JEE/NEET examples.
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.
Class 11 Physics Units and Measurements notes: SI system, dimensional analysis, errors, significant figures and rounding — with key formulas and solved JEE/NEET examples.
Class 11 Chemistry Thermodynamics notes: first law, enthalpy, Hess's law, bond energy, entropy, Gibbs free energy and spontaneity — with key formulas and solved JEE/NEET examples.
Class 11 Chemistry Some Basic Concepts notes: mole concept, stoichiometry, molarity, percentage composition, limiting reagent and laws of chemical combination — with key formulas and solved JEE/NEET examples.
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.
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.
Class 12 Maths notes: relations & functions, inverse trig, matrices & determinants, continuity & differentiability, integrals, vectors and probability — with key formulas for CBSE and JEE revision.
Class 12 Inorganic Chemistry notes: p-block and d-block elements, coordination compounds, crystal field theory and qualitative analysis — with key facts and solved JEE/NEET examples.
Class 12 Organic Chemistry notes: named reactions, IUPAC nomenclature, haloalkanes, alcohols, aldehydes-ketones, carboxylic acids and amines — with key formulas and solved JEE/NEET examples.
Class 12 Physics Current Electricity notes: Ohm's law, resistance, drift velocity, Kirchhoff's laws, Wheatstone bridge, EMF and potentiometer — with key formulas and solved JEE/NEET examples.
Class 12 Chemistry Solid State notes: crystal lattices, unit cells, packing efficiency, voids, imperfections and magnetic/electrical properties — with key formulas and solved JEE/NEET examples.
Class 12 Chemistry Solutions notes: types of solutions, concentration terms, Raoult's law, colligative properties and colloids — with key formulas and solved JEE/NEET examples.
Class 12 Electric Charges and Fields notes: Coulomb's law, electric field, field lines, electric dipole, Gauss's law and flux — with key formulas and solved JEE/NEET examples.
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 Physics Laws of Motion notes: Newton's laws, momentum, impulse, friction and circular motion with formulas and MCQ practice.
Class 11 Physics Motion in a Plane notes: scalars and vectors, vector addition and resolution, projectile motion and uniform circular motion — with key formulas and solved JEE/NEET examples.
uniformly accelerated motion, motion under gravity, relative velocity
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