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Study Notes

Class 11 & 12 Notes — written for boards and entrance exams, chapter by chapter.

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.

Latest chapters

206 notes

Showing 169–192 of 206. Free to read and download — updated with new chapters every few weeks.

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
PhysicsClass 11

Laws of Motion Class 11 Physics Notes — Free PDF, MCQs & Numericals

Class 11 Physics Laws of Motion notes — free PDF, no signup. Newton's laws, friction, momentum & banking of roads with formulas, solved numericals & MCQs.

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

Motion in a Straight Line Class 11 Notes — Free PDF, MCQs & Numericals

Class 11 Motion in a Straight Line notes — free PDF, no signup. Distance, acceleration, graphs, relative motion with formulas, solved numericals & MCQs.

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

Units and Measurements Class 11 Physics Notes

Class 11 Physics Units and Measurements notes: SI system, dimensional analysis, errors, significant figures and rounding — with key formulas and solved JEE/NEET examples.

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

Class 11 Physics Notes (Chapter-Wise for CBSE, JEE & NEET)

Complete Class 11 Physics notes chapter-wise: units & measurements, kinematics, laws of motion, rotational motion, gravitation, properties of matter, thermodynamics and kinetic theory, oscillations and waves — key formulas, FAQs and solved examples for CBSE, JEE and NEET.

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

Class 11 Chemistry Notes (Chapter-Wise for CBSE, JEE & NEET)

Complete Class 11 Chemistry notes chapter-wise: basic concepts, atomic structure, chemical bonding, thermodynamics, equilibrium, redox, organic and hydrocarbons — key formulas, FAQs and solved examples for CBSE, JEE and NEET.

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

Class 12 Physics Notes (Chapter-Wise for CBSE, JEE & NEET)

Complete Class 12 Physics notes chapter-wise: electric charges, potential, current electricity, magnetism, EMI, AC, ray and wave optics, and modern physics (atoms, nuclei, photoelectric effect, semiconductors) — key formulas, FAQs and solved examples for CBSE, JEE and NEET.

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

Class 11 Maths Notes (Chapter-Wise for CBSE & JEE)

Complete Class 11 Maths notes chapter-wise in NCERT order: sets, relations and functions, trigonometric functions, complex numbers, linear inequalities, permutations and combinations, binomial theorem, sequences and series, straight lines, conic sections, three dimensional geometry, limits and derivatives, statistics and probability — key formulas for CBSE boards and JEE.

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

Class 12 Maths Notes (Chapter-Wise for CBSE & JEE)

Complete Class 12 Maths notes chapter-wise in NCERT order: relations and functions, inverse trigonometric functions, matrices and determinants, continuity and differentiability, application of derivatives, integrals, application of integrals, differential equations, vector algebra, three dimensional geometry, linear programming and probability — key formulas for CBSE boards and JEE.

CBSE Class 12 · JEE Main & Advanced
ChemistryClass 12

Class 12 Chemistry Notes (Chapter-Wise for CBSE, JEE & 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.

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

Class 12 Physics Notes In Hindi — कक्षा 12 भौतिक विज्ञान नोट्स हिंदी

Class 12 Physics Notes in Hindi — कक्षा 12 भौतिक विज्ञान के NCERT अध्यायवार नोट्स हिंदी में: विद्युत आवेश, धारा, चुम्बकत्व, वैद्युतचुम्बकीय प्रेरण, प्रत्यावर्ती धारा, प्रकाशिकी, परमाणु व अर्धचालक — सूत्रों के साथ CBSE, Bihar, UP बोर्ड व JEE/NEET के लिए।

CBSE Class 12 · JEE Main & Advanced · NEET · Bihar Board · UP Board
ChemistryClass 12

Class 12 Chemistry Notes In Hindi — कक्षा 12 रसायन विज्ञान नोट्स हिंदी

Class 12 Chemistry Notes in Hindi — कक्षा 12 रसायन विज्ञान के NCERT अध्यायवार नोट्स हिंदी में: विलयन, वैद्युतरसायन, रासायनिक बलगतिकी, d- व f-ब्लॉक तत्त्व, उपसहसंयोजन यौगिक, ऐमीन, जैव-अणु — सूत्रों के साथ CBSE, Bihar, UP बोर्ड व NEET/JEE के लिए।

CBSE Class 12 · NEET · JEE Main · Bihar Board · UP Board
BiologyClass 12

Class 12 Biology Notes (Chapter-Wise for CBSE & NEET)

Complete Class 12 Biology notes chapter-wise in NCERT order: reproduction, genetics and evolution, human health and disease, microbes, biotechnology, organisms and populations, ecosystem, and biodiversity and conservation — key points for CBSE boards and NEET.

CBSE Class 12 · NEET
BiologyClass 12

Biodiversity and Conservation Class 12 Notes

Biodiversity and conservation class 12 notes: types of diversity, patterns, hotspots, threats, and in situ and ex situ conservation for CBSE and NEET.

CBSE Class 12 · NEET
BiologyClass 12

Ecosystem Class 12 Notes

Ecosystem class 12 notes: productivity (GPP, NPP), energy flow and the 10% law, ecological pyramids, decomposition, nutrient cycles and succession for CBSE and NEET.

CBSE Class 12 · NEET
BiologyClass 12

Organisms and Populations Class 12 Notes

Organisms and populations class 12 notes: abiotic factors, adaptations, population attributes, exponential and logistic growth, and species interactions for CBSE and NEET.

CBSE Class 12 · NEET
BiologyClass 12

Biotechnology and Its Applications Class 12 Notes

Biotechnology and its applications class 12 notes: Bt crops, recombinant insulin, gene therapy, molecular diagnosis, transgenic animals and bioethics for CBSE and NEET.

CBSE Class 12 · NEET
BiologyClass 12

Biotechnology: Principles and Processes Class 12 Notes

Biotechnology Principles and Processes Class 12 notes: genetic engineering tools, restriction enzymes, vectors, PCR, gel electrophoresis, transformation and bioreactors for CBSE and NEET.

CBSE Class 12 · NEET
BiologyClass 12

Microbes in Human Welfare Class 12 Notes

Microbes in Human Welfare Class 12 notes: role of microbes in household products, industrial production, sewage treatment, biogas, biocontrol and biofertilisers for CBSE and NEET.

CBSE Class 12 · NEET
BiologyClass 12

Human Health and Disease Class 12 Notes

Human Health and Disease Class 12 notes: common diseases and pathogens, immunity, vaccination, cancer, AIDS, drugs and alcohol abuse for CBSE and NEET.

CBSE Class 12 · NEET
BiologyClass 12

Evolution Class 12 Notes

Evolution class 12 notes: Oparin-Haldane hypothesis, evidences of evolution, Darwin's natural selection, Hardy-Weinberg principle, speciation and human evolution for CBSE and NEET.

CBSE Class 12 · NEET

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