Concept-first chapter notes and 30-question chapter tests for JEE Main and JEE Advanced Physics, Chemistry and Mathematics.
Select your class / paper and subject to see only the notes and chapter tests you need.
Filters: all class / papers, all subjects. 53 chapters shown
SI units, dimensional analysis, error propagation and the precision of vernier/screw-gauge instruments form a short but scoring entrance-exam topic. Dimensional checks let you eliminate wrong options in seconds without solving the full problem.
10 min read · Weightage 2–3 of 40 Physics questions
Kinematics builds the language of motion — position, velocity, acceleration and their graphical relationships — used throughout mechanics. Entrance papers frequently test graph-reading and relative-velocity problems involving projectiles, rivers and boats.
13 min read · Weightage 3–4 of 40 Physics questions
Newton's three laws, free-body diagrams, friction, circular motion dynamics and pseudo forces — the backbone of all mechanics problem solving.
14 min read · Weightage 4–5% (2–3 questions in NEET, 1–2 in JEE Main)
Work done by constant and variable forces, work-energy theorem, conservative forces, potential energy curves, collisions and power — the fastest route to solving mechanics problems without kinematics.
13 min read · Weightage 4–5% (2–3 questions in NEET, 1–2 in JEE Main)
Rotational motion extends Newton's laws and energy methods to rigid bodies using moment of inertia, torque and angular momentum. Entrance papers reward memorised moments of inertia and quick application of the parallel/perpendicular axis theorems and rolling conditions.
14 min read · Weightage 3–4 of 40 Physics questions
Newton's law of gravitation, Kepler's laws, gravitational field/potential energy, and escape/orbital velocity for satellites — a high-yield mechanics chapter.
13 min read · Weightage 1 question typically in board exams; important for JEE/NEET overlap
Elasticity, surface tension, viscosity and fluid statics/dynamics link microscopic intermolecular forces to macroscopic mechanical behaviour. IAT tests stress-strain curve reading, Bernoulli applications and terminal-velocity numericals with equal weight.
16 min read · Weightage 6–8% of IAT Physics
Kinetic theory of gases, thermodynamic processes and heat engines connect molecular motion to macroscopic work and heat. IAT frequently combines PV-diagram interpretation with first-law and efficiency calculations in a single multi-step question.
16 min read · Weightage 6–8% of IAT Physics
Molecular model of an ideal gas, pressure derivation, degrees of freedom, specific heats and mean free path — linking microscopic motion to macroscopic gas laws.
12 min read · Weightage 1 question typically in board exams; frequent numerical topic
Simple harmonic motion links periodic mechanical systems (springs, pendulums) through a single differential equation, while wave motion covers propagation, superposition, beats and the Doppler effect. Entrance papers repeatedly test SHM energy partition and standard wave-formula plug-ins.
14 min read · Weightage 3–4 of 40 Physics questions
Mole concept, stoichiometry, limiting reagent, concentration terms and empirical/molecular formulae — the calculation base of all physical chemistry.
12 min read · Weightage 3–4% (1–2 questions every year in both NEET and JEE Main)
Quantum numbers, orbital shapes, electronic configuration rules and their exceptions form the backbone of every periodicity and bonding question in entrance papers. Mastering Bohr's model, de Broglie wavelength and the Aufbau/Hund/Pauli framework lets you answer configuration and spectral questions in seconds.
11 min read · Weightage 3–4 questions in entrance papers Chemistry
The modern periodic law, block-wise classification of elements, and periodic trends in atomic size, ionisation enthalpy, electron gain enthalpy and electronegativity, including key exceptions.
13 min read · Weightage 4-6 marks in CBSE boards; frequent NCERT-based questions
Ionic and covalent bonding, VSEPR geometry, hybridisation, molecular orbital theory, bond parameters, dipole moment and hydrogen bonding — the most frequently examined inorganic-physical crossover chapter.
16 min read · Weightage 6–8% (3–4 questions in NEET, 2–3 in JEE Main)
System and surroundings, internal energy and enthalpy, the first law, heat capacities, Hess's law, bond enthalpies, entropy, Gibbs energy and spontaneity — the chapter that connects physical chemistry to equilibrium and electrochemistry.
17 min read · Weightage 5–7% (2–3 questions in NEET, 2 in JEE Main)
Equilibrium constants Kp and Kc, Le Chatelier's principle, acids and bases, pH and buffers, salt hydrolysis and solubility product — one of the highest-scoring chapters in Physical Chemistry.
18 min read · Weightage 6–7% (2–3 questions in NEET, 2–3 in JEE Main)
Oxidation numbers, identification of oxidising and reducing agents, balancing by oxidation-number and ion-electron methods, disproportionation and redox titrations.
11 min read · Weightage 2–3% (1 question in NEET, 1 in JEE Main)
This chapter builds the electronic-effect and mechanism toolkit — inductive, resonance, hyperconjugation and their impact on stability and reactivity — that underlies every later organic chapter. IUPAC nomenclature and the classification of reaction intermediates (carbocations, carbanions, free radicals) are core recurring exam themes.
12 min read · Weightage 3–4 questions in entrance papers Chemistry
Alkanes, alkenes, alkynes, arenes and alkyl/aryl halides are tested through characteristic reaction mechanisms — Markovnikov/anti-Markovnikov addition, free-radical substitution, electrophilic aromatic substitution and SN1/SN2/E1/E2 pathways. Recognising which mechanism applies from substrate, reagent and conditions is the key exam skill in this chapter.
13 min read · Weightage 4–5 questions in entrance papers Chemistry
Systematic qualitative analysis of inorganic salts (cation and anion detection) and quantitative volumetric titration techniques, both central to the CBSE Class 12 chemistry practical examination.
13 min read · Weightage Practical exam: 30 marks (salt analysis + volumetric titration are core components)
Sets, relations and functions form the logical backbone of the IAT Mathematics section. Questions test set operations and Venn-diagram counting, properties of relations (reflexive, symmetric, transitive, equivalence), and function concepts such as domain, range, injectivity/surjectivity, composition and inverses.
14 min read · Weightage 6-8 of the IAT Mathematics section
Complex numbers extend algebra to the plane, giving geometric meaning to rotation, modulus and argument. Entrance papers combine algebraic manipulation with cube-root-of-unity identities and locus problems in the Argand plane.
12 min read · Weightage 3–5 of 40 Mathematics questions
Roots, discriminant, relations between roots and coefficients, common roots, sign of a quadratic and location of roots — a high-frequency JEE Main topic.
13 min read · Weightage 3–4% (1–2 questions in JEE Main every session)
Arithmetic, geometric, harmonic and arithmetico-geometric progressions, means and inequalities, special summations and telescoping techniques — the chapter that quietly powers half of the algebra you will meet later.
17 min read · Weightage 5–6% (2–3 questions in JEE Main, guaranteed in BITSAT)
Counting principles, arrangements with restrictions, and the binomial expansion with its general and middle terms are a reliable, formula-driven source of exam marks. Precision in identifying whether order matters is the single biggest skill here.
13 min read · Weightage 4–6 of 40 Mathematics questions
Compound-angle and transformation identities, general solutions of trigonometric equations, inverse trigonometric functions and heights-and-distances problems form a compact, formula-heavy exam topic. Speed comes from having the identity list memorised cold, not from re-deriving it under time pressure.
13 min read · Weightage 4–6 of 40 Mathematics questions
Coordinate geometry of lines and circles tests algebraic fluency: slope forms, distance formulas, family of lines, and the standard circle equation with tangents and chords. Recognising the right standard form early saves the most time.
14 min read · Weightage 5–7 of 40 Mathematics questions
Parabola, ellipse and hyperbola in standard form — focus, directrix, eccentricity, latus rectum, tangents, normals, chord of contact and the classic parametric results.
14 min read · Weightage 6–8% (2–3 questions in JEE Main, 1–2 in Advanced)
Standard limits, indeterminate forms, L'Hôpital's rule, expansions, continuity tests and differentiability of piecewise and modulus functions — the entry gate to all of calculus in JEE.
15 min read · Weightage 6–8% (2–3 questions in JEE Main, frequent in Advanced)
Mathematical reasoning covers statements, logical connectives, truth tables, and the validity of arguments. It is a low-formula, high-precision topic — most errors come from misreading a connective or a quantifier rather than from a computational slip.
10 min read · Weightage 2-4 of the IAT Mathematics section
Probability covers conditional probability, Bayes' theorem and standard distributions, while statistics focuses on measures of central tendency and dispersion. Both reward careful setup — defining the sample space or the correct formula before calculating.
13 min read · Weightage 4–6 of 40 Mathematics questions
Coulomb's law, electric field and potential, dipoles, Gauss's law with symmetry, conductors, capacitance and dielectrics — a chapter where choosing the right symmetry converts a page of integration into a one-line answer.
20 min read · Weightage 8–9% (3–4 questions in NEET, 2–3 in JEE Main)
Ohm's law, drift velocity, resistivity, series-parallel networks, Kirchhoff's rules, Wheatstone bridge, potentiometer and cell combinations — the highest-yield electricity chapter for both exams.
15 min read · Weightage 6–7% (3–4 questions in NEET, 2–3 in JEE Main)
Magnetic force on charges and currents, Biot–Savart and Ampere's law, fields of loops and solenoids, the cyclotron and moving-coil galvanometer — a formula-dense chapter that returns 2–3 questions every year.
16 min read · Weightage 5–6% (2–3 questions in NEET, 2 in JEE Main)
Electromagnetic induction, alternating current circuits and Maxwell's unification into electromagnetic waves form a tightly connected block. IAT problems commonly chain a motional-emf or mutual-inductance setup into an LCR resonance or power calculation.
17 min read · Weightage 7–9% of IAT Physics
Reflection at plane and spherical mirrors, refraction, total internal reflection, prisms, thin lenses, lens combinations and the optical instruments built from them — a high-scoring, formula-driven chapter where sign convention decides your marks.
18 min read · Weightage 5–6% (3–4 questions in NEET, 1–2 in JEE Main)
Huygens' principle, Young's double slit interference, thin-film colours, single-slit diffraction, resolving power and polarisation — the wave picture of light with all standard numericals.
13 min read · Weightage 3–4% (1–2 questions in NEET, 1–2 in JEE Main)
Modern physics covers the photoelectric effect, matter waves, Bohr's atomic model and nuclear physics — topics built almost entirely on direct formula application. Questions here are quick, formula-based scorers if the standard relations are memorised precisely.
14 min read · Weightage 4–5 of 40 Physics questions
Energy bands, intrinsic and extrinsic semiconductors, p-n junction and diode characteristics, rectifiers, Zener regulation, transistor action and logic gates.
12 min read · Weightage 3–4% (1–2 questions in NEET, 1 in JEE Main)
Colligative properties link solute amount to measurable changes in vapour pressure, boiling point, freezing point and osmotic pressure, while surface chemistry covers adsorption, colloids and catalysis. IAT tests both quantitative colligative calculations (with van't Hoff factor corrections) and conceptual surface-chemistry classification.
13 min read · Weightage 6–8 questions in IAT Chemistry
Electrochemistry links chemical change to electrical energy through galvanic and electrolytic cells, EMF, the Nernst equation and Faraday's laws. Entrance papers frequently test cell notation, standard electrode potentials, conductance and quantitative electrolysis calculations.
11 min read · Weightage 3–4 questions in entrance papers Chemistry
Rate of reaction, rate laws and order, integrated rate equations, half-life, the Arrhenius equation, collision theory and catalysis — a compact, highly formula-driven chapter that reliably delivers full marks with practice.
16 min read · Weightage 4–5% (2 questions in NEET, 1–2 in JEE Main, 7 marks in CBSE XII)
Groups 13–18 show sharp anomalies driven by the inert pair effect, back bonding and catenation trends, tested heavily through oxoacids, boranes, silicates and interhalogen structures. Entrance papers focus on structure–bonding correlations and characteristic reactions of these elements and their compounds.
13 min read · Weightage 4–5 questions in entrance papers Chemistry
Transition-metal trends, variable oxidation states, colour and magnetism, lanthanoid contraction, actinoid chemistry and the reactions of KMnO₄ and K₂Cr₂O₇.
12 min read · Weightage 3–4% (1–2 questions in NEET, 1 in JEE Main)
Coordination compounds feature a central metal bonded to ligands via coordinate bonds, exhibiting rich structural (isomerism), electronic (colour, magnetism) and bonding (VBT, CFT) behaviour. IAT tests IUPAC nomenclature, isomerism classification, crystal field splitting and magnetic/spectral predictions.
14 min read · Weightage 6–8 questions in IAT Chemistry
Alcohols, phenols, ethers, aldehydes, ketones, carboxylic acids and amines each show characteristic reactivity governed by their functional group. IAT emphasises named reactions, acidity/basicity ordering, mechanism-based product prediction and distinguishing chemical tests.
14 min read · Weightage 6–8 questions in IAT Chemistry
Biomolecules (carbohydrates, proteins, nucleic acids, vitamins, hormones) sustain life processes, polymers are giant molecules built from repeating monomer units used across industries, and environmental chemistry studies pollution of air, water and soil along with green chemistry principles. IAT tests structural classification, biochemical reactions, polymer types/uses and pollution mechanisms.
14 min read · Weightage 6–8 questions in IAT Chemistry
Matrix algebra, special matrices, determinant properties, adjoint and inverse, rank and the consistency of linear systems — a scoring, rule-based chapter with guaranteed questions in JEE Main and boards.
15 min read · Weightage 6–7% (2–3 questions in JEE Main, 1–2 in BITSAT)
Differentiation and its applications — limits, continuity, derivative rules, tangents/normals, monotonicity, maxima/minima and Mean Value Theorems — are heavily tested in the IAT. Speed comes from having standard derivatives and the chain/product/quotient rules automatic, then translating word problems into optimisation or rate-of-change setups.
17 min read · Weightage 10-12 of the IAT Mathematics section
Integration techniques (substitution, by parts, partial fractions), definite-integral properties, and area-under-curves problems are calculus workhorses for the IAT. Recognising the right technique and applying definite-integral symmetry properties saves significant time.
15 min read · Weightage 8-10 of the IAT Mathematics section
Differential equations test the ability to identify order/degree, form a DE from a geometric or physical condition, and solve first-order equations by variable separable, homogeneous or linear methods. IAT questions frequently combine formation with solving, or embed a growth/decay application.
13 min read · Weightage 4-6 of the IAT Mathematics section
Vector algebra, dot and cross products, scalar and vector triple products, direction cosines, lines and planes in space, shortest distance and angles — a highly scoring chapter where a clean vector method replaces long coordinate computation.
18 min read · Weightage 8–10% (3–4 questions across JEE Main sessions)
Algebraic and graphical solutions of linear inequalities in one and two variables, and an introduction to formulating and solving linear programming problems using the corner point method.
12 min read · Weightage 4-6 marks in CBSE boards, often as a full LPP-style question
Admissions open
JEE Main & Advanced free notes and chapter tests is part of the JEE Main & Advanced syllabus plan. Pick the batch by the year you appear in — Class 11 students join the two-year JEE 2028 program, Class 12 students and repeaters join the one-year or crash program for JEE 2027.
