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 25–48 of 206. Free to read and download — updated with new chapters every few weeks.
Arithmetic Progressions Class 10 Maths Notes
Arithmetic progressions Class 10 notes: common difference, the nth term, both forms of the sum of the first n terms, and daily-life applications with solved answers.
Areas Related to Circles Class 10 Maths Notes
Areas related to circles Class 10 notes: circumference, area, sector and segment areas, combinations of plane figures, and fully worked numericals using π = 22/7.
Class 10 Maths Notes
CBSE Class 10 Mathematics notes for the 2024-25 rationalised syllabus: all 15 assessed chapters, unit-wise marks, the formulas that carry the paper, and every topic the rationalisation deleted.
Class 10 Science Notes
CBSE Class 10 Science notes for the 2024-25 rationalised syllabus: all 13 assessed chapters, chapter-wise explanations, formulas and exam pointers, plus the practicals list.
The Human Eye and Colourful World Class 10 Notes
Class 10 Science notes on the human eye, accommodation, myopia, hypermetropia and presbyopia, their corrections, and the applications of spherical mirrors and lenses.
Our Environment Class 10 Notes
Class 10 Science notes on ecosystems, food chains and the 10% law, environmental problems, ozone depletion, waste production and biodegradable substances.
Metals and Non-Metals Class 10 Notes
Metals and non-metals Class 10 notes: physical and chemical properties, the reactivity series, ionic compounds and their properties, the steps of metallurgy, and corrosion and its prevention.
Magnetic Effects of Electric Current Class 10 Notes
Class 10 Science notes on the magnetic field of a current, field lines, solenoids, Fleming's left hand rule, direct and alternating current, and domestic electric circuits.
Light Reflection and Refraction Class 10 Notes
Class 10 Science notes on Light: spherical mirrors, image formation, mirror formula, laws of refraction, refractive index, lenses, power and dispersion of light.
Life Processes Class 10 Notes
Life processes Class 10 notes: the characteristics of living beings, and nutrition, respiration, transport and excretion in plants and animals, compared side by side for the board exam.
How do Organisms Reproduce Class 10 Notes
Complete Class 10 Science notes on reproduction: asexual modes, sexual reproduction in plants and humans, fertilisation, family planning, reproductive health and HIV/AIDS prevention.
Heredity Class 10 Notes
Class 10 Science notes on Heredity: Mendel's pea experiments, the Laws of Dominance and Segregation, monohybrid and dihybrid crosses, ratio 9:3:3:1, and sex determination.
Electricity Class 10 Notes
Class 10 Science notes on electric current, potential difference, Ohm's law, resistance, resistivity, series and parallel combinations, Joule's heating and electric power.
Control and Coordination Class 10 Notes
Concise CBSE Class 10 notes on Control and Coordination: reflex arcs, neurons, the human nervous system, tropic movements and plant hormones, with exam traps.
Chemical Reactions and Equations Class 10 Notes
Chemical reactions and equations Class 10 notes: how to write and balance an equation, the five types of reaction, exothermic and endothermic, and oxidation with reduction.
Carbon and its Compounds Class 10 Notes
Carbon and its compounds Class 10 notes: covalent bonding, the versatile nature of carbon, homologous series, nomenclature of functional groups, saturated and unsaturated hydrocarbons, and soaps.
Acids, Bases and Salts Class 10 Notes
Acids, bases and salts Class 10 notes: definitions in terms of H+ and OH- ions, general properties, the pH scale and its everyday importance, neutralisation, and five common compounds.
Class 12 Economics Notes
Complete CBSE Class 12 Economics notes aligned to the 2024-25 syllabus: Introductory Macroeconomics and Indian Economic Development, unit by unit, with formulas, diagrams and exam pointers.
Class 11 Economics Notes
Complete CBSE Class 11 Economics notes aligned to the 2024-25 syllabus: Statistics for Economics and Introductory Microeconomics, unit by unit, with formulas and exam pointers.
Development Experience of India vs Neighbours
CBSE Class 12 Indian economic development: the development experience of India compared with Pakistan and China, on growth, population and the reform strategies.
Current Challenges Facing Indian Economy Class 12 Notes
CBSE Class 12 Indian economic development: human capital formation, rural development, employment problems, and sustainable development, the four current challenges of the Indian economy.
Development Experience 1947-90 & Economic Reforms since 1991
CBSE Class 12 Indian economic development: the colonial structure, the aims and goals of the plans, agriculture and the green revolution, the industrial policy, and the new economic policy of 1991.
Balance of Payments Class 12 Notes
CBSE Class 12 macroeconomics balance of payments: the current and capital accounts, balance of trade, BOP deficits and surpluses, and fixed, flexible and managed floating exchange rates.
Government Budget and the Economy Class 12 Notes
CBSE Class 12 macroeconomics budget: objectives and components of the budget, revenue and capital receipts, revenue and capital expenditure, and the revenue, fiscal and primary deficits.
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.