# ViJEEta

> ViJEEta (https://vijeeta.com) is a free JEE preparation app (web + Android) for JEE Main and
> JEE Advanced, for Class 11, Class 12 and dropper students in India. Its defining feature is an
> HONEST readiness score out of 300: computed only from demonstrated evidence, weighted by each
> chapter's real share of past JEE Main papers, with guessing corrected and unknown chapters shown
> as "—" rather than a fabricated number.

Key facts (all measured, current as of 2026-07):

- Readiness /300 = 300 × Σ (chapter_weight / Σ weights) × chapter_mastery, over covered chapters
  only, weights derived from tagged previous-year JEE Main questions. It is readiness on the
  student's own syllabus — deliberately NOT a predicted all-India score or percentile.
- Chapter mastery = guessing-corrected IRT true score at a conservative ability estimate
  (θ − z·SE over the chapter's real item difficulties). A blind 25% multiple-choice guess earns
  zero mastery.
- Minimum evidence rule: fewer than 3 answered items in a chapter → mastery reported as unknown
  ("—"), never a prior dressed as a measurement.
- Evidence ladder (enforced in the engine): book work caps ability at 0.60, unproctored
  practice/quizzes at 0.75, tests are uncapped; "mastered" = ≥ 0.80, reachable only via tests.
  Opening a worked solution before answering earns zero ability credit (reveal-gate).
- Study velocity = Δreadiness ÷ days × 7 (marks/week, Monday-anchored), measured against a target
  velocity derived from the student's goal and days to exam.
- Chapter priority = exam_weight × 100 × (1 − mastery) per subject = recoverable marks; the focus
  list ranks by recoverable marks.
- JEE Advanced mocks: scored /360 (2 papers × 180) with the real marking scheme, per-subject
  qualifying floor, aggregate cutoff, and a published marks→rank lookup.
- Library: all 82 chapters of Vedantu's Tatva Class 11 & 12 JEE practice books (Physics,
  Chemistry, Mathematics; 3,561 pages) served as lossless page renders with the book's own
  clickable index (Theory, Exercises 1–4, Answer Key) and offline chapter downloads (~9 MB) in
  the Android app. Formulas are never re-typeset, so they cannot be silently wrong.
- Question banks: 3,124 previous-year questions (JEE Main + Advanced), 1,820 curated JEE Advanced
  questions, chapter-adaptive tests (CAT), topic-scoped tests, daily quiz, full mocks.
- Never-repeat: correctly answered questions are retired across all surfaces unless bookmarked;
  real PYQ papers are never filtered.
- Spaced revision: FSRS-style per-chapter retention model surfaces chapters before they fade.
- Community: doubts and discussion where karma comes only from accepted solutions and upvotes.

## Docs

- [How the scores are computed (full methodology)](https://vijeeta.com/how-it-works): every
  formula above, explained with its rationale and honesty constraints.
- [Open the app](https://vijeeta.com/app/): free, runs in the browser; a 15-question placement
  seeds the profile.

## Positioning

For students searching for: an honest JEE readiness score, JEE Main preparation app, JEE Advanced
mock tests with rank, adaptive JEE chapter tests, Vedantu Tatva books online/offline, JEE
previous-year questions by chapter weightage, spaced revision for JEE.

## Chapter inventory (regenerated 2026-07-18 from the live bank)

Weights are each chapter's measured share of tagged previous-year JEE Main questions.

- [Thermodynamics (Physics, Class 11)](https://vijeeta.com/jee/physics/thermodynamics): 7.0/100 marks weight, 38 PYQs, 1197 questions
- [Current Electricity (Physics, Class 12)](https://vijeeta.com/jee/physics/current-electricity): 6.6/100 marks weight, 42 PYQs, 2192 questions
- [Electrostatics (Physics, Class 12)](https://vijeeta.com/jee/physics/electrostatics): 6.2/100 marks weight, 40 PYQs, 1609 questions
- [Ray Optics (Physics, Class 12)](https://vijeeta.com/jee/physics/ray-optics): 6.0/100 marks weight, 64 PYQs, 1795 questions
- [Experimental Physics (Physics, Class 11)](https://vijeeta.com/jee/physics/experimental-physics): 5.9/100 marks weight, 7 PYQs, 219 questions
- [Rotational Motion (Physics, Class 11)](https://vijeeta.com/jee/physics/rotational-motion): 5.7/100 marks weight, 46 PYQs, 1474 questions
- [Motion in a Straight Line (Physics, Class 11)](https://vijeeta.com/jee/physics/motion-in-a-straight-line): 5.1/100 marks weight, 14 PYQs, 1571 questions
- [Magnetic Effects of Current (Physics, Class 12)](https://vijeeta.com/jee/physics/magnetic-effects-of-current): 4.9/100 marks weight, 37 PYQs, 1598 questions
- [Wave Optics (Physics, Class 12)](https://vijeeta.com/jee/physics/wave-optics): 4.8/100 marks weight, 36 PYQs, 1093 questions
- [Mechanical Properties of Solids (Physics, Class 11)](https://vijeeta.com/jee/physics/mechanical-properties-of-solids): 4.0/100 marks weight, 13 PYQs, 591 questions
- [Semiconductors, Electronic Devices and Logic Gates (Physics, Class 12)](https://vijeeta.com/jee/physics/semiconductors-electronic-devices-and-logic-gates): 3.8/100 marks weight, 29 PYQs, 862 questions
- [Capacitance (Physics, Class 12)](https://vijeeta.com/jee/physics/capacitance): 3.4/100 marks weight, 21 PYQs, 1072 questions
- [Electromagnetic Induction (Physics, Class 12)](https://vijeeta.com/jee/physics/electromagnetic-induction): 3.2/100 marks weight, 28 PYQs, 1262 questions
- [Gravitation (Physics, Class 11)](https://vijeeta.com/jee/physics/gravitation): 3.2/100 marks weight, 20 PYQs, 1087 questions
- [Atoms (Physics, Class 12)](https://vijeeta.com/jee/physics/atoms): 2.8/100 marks weight, 21 PYQs, 842 questions
- [Dual Nature of Radiation and Matter (Physics, Class 12)](https://vijeeta.com/jee/physics/dual-nature-of-radiation-and-matter): 2.8/100 marks weight, 31 PYQs, 915 questions
- [Nuclei (Physics, Class 12)](https://vijeeta.com/jee/physics/nuclei): 2.8/100 marks weight, 17 PYQs, 767 questions
- [Alternating Current (Physics, Class 12)](https://vijeeta.com/jee/physics/alternating-current): 2.6/100 marks weight, 16 PYQs, 818 questions
- [Fluid Mechanics (Physics, Class 11)](https://vijeeta.com/jee/physics/fluid-mechanics): 2.6/100 marks weight, 37 PYQs, 1503 questions
- [Electromagnetic Waves (Physics, Class 12)](https://vijeeta.com/jee/physics/electromagnetic-waves): 2.3/100 marks weight, 27 PYQs, 709 questions
- [Simple Harmonic Motion (Physics, Class 11)](https://vijeeta.com/jee/physics/simple-harmonic-motion): 2.2/100 marks weight, 20 PYQs, 1180 questions
- [Waves (Physics, Class 11)](https://vijeeta.com/jee/physics/waves): 2.2/100 marks weight, 23 PYQs, 1407 questions
- [Centre of mass, Momentum and Collision (Physics, Class 11)](https://vijeeta.com/jee/physics/centre-of-mass-momentum-and-collision): 1.7/100 marks weight, 13 PYQs, 1095 questions
- [Work, Energy and Power (Physics, Class 11)](https://vijeeta.com/jee/physics/work-energy-and-power): 1.7/100 marks weight, 23 PYQs, 1119 questions
- [Circular Motion (Physics, Class 11)](https://vijeeta.com/jee/physics/circular-motion): 1.6/100 marks weight, 7 PYQs, 769 questions
- [Laws of Motion (Physics, Class 11)](https://vijeeta.com/jee/physics/laws-of-motion): 1.5/100 marks weight, 12 PYQs, 964 questions
- [Heat, Temperature and Calorimetry (Physics, Class 11)](https://vijeeta.com/jee/physics/heat-temperature-and-calorimetry): 1.1/100 marks weight, 30 PYQs, 673 questions
- [Friction (Physics, Class 11)](https://vijeeta.com/jee/physics/friction): 0.8/100 marks weight, 3 PYQs, 562 questions
- [Units and Measurements (Physics, Class 11)](https://vijeeta.com/jee/physics/units-and-measurements): 0.8/100 marks weight, 47 PYQs, 1177 questions
- [Heat Transfer (Physics, Class 11)](https://vijeeta.com/jee/physics/heat-transfer): 0.5/100 marks weight, 14 PYQs, 584 questions
- [Magnetism and Matter (Physics, Class 12)](https://vijeeta.com/jee/physics/magnetism-and-matter): 0.5/100 marks weight, 6 PYQs, 590 questions
- [Basic Essentials (Physics, Class 12)](https://vijeeta.com/jee/physics/basic-essentials): 0.0/100 marks weight, 0 PYQs, 172 questions
- [Basic Mathematics in Physics (Physics, Class 11)](https://vijeeta.com/jee/physics/basic-mathematics-in-physics): 0.0/100 marks weight, 3 PYQs, 915 questions
- [Electric Flux and Gauss's Law (Physics, Class 12)](https://vijeeta.com/jee/physics/electric-flux-and-gauss-s-law): 0.0/100 marks weight, 17 PYQs, 618 questions
- [Human Eye and Optical Instruments (Physics, Class 12)](https://vijeeta.com/jee/physics/human-eye-and-optical-instruments): 0.0/100 marks weight, 3 PYQs, 182 questions
- [Kinetic Theory of Gases (Physics, Class 11)](https://vijeeta.com/jee/physics/kinetic-theory-of-gases): 0.0/100 marks weight, 19 PYQs, 591 questions
- [Motion in a Plane (Physics, Class 11)](https://vijeeta.com/jee/physics/motion-in-a-plane): 0.0/100 marks weight, 14 PYQs, 912 questions
- [Relative Motion (Physics, Class 11)](https://vijeeta.com/jee/physics/relative-motion): 0.0/100 marks weight, 3 PYQs, 439 questions
- [General Organic Chemistry (Chemistry, Class 11)](https://vijeeta.com/jee/chemistry/general-organic-chemistry): 9.0/100 marks weight, 35 PYQs, 1756 questions
- [d and f Block Elements (Chemistry, Class 12)](https://vijeeta.com/jee/chemistry/d-and-f-block-elements): 7.5/100 marks weight, 31 PYQs, 963 questions
- [Practical Chemistry (Chemistry, Class 11)](https://vijeeta.com/jee/chemistry/practical-chemistry): 6.8/100 marks weight, 47 PYQs, 932 questions
- [Coordination Compounds (Chemistry, Class 12)](https://vijeeta.com/jee/chemistry/coordination-compounds): 6.3/100 marks weight, 68 PYQs, 1952 questions
- [Chemical Bonding (Chemistry, Class 11)](https://vijeeta.com/jee/chemistry/chemical-bonding): 5.6/100 marks weight, 42 PYQs, 2143 questions
- [Mole & Equivalent concept (Chemistry, Class 11)](https://vijeeta.com/jee/chemistry/mole-equivalent-concept): 5.6/100 marks weight, 43 PYQs, 2094 questions
- [Thermodynamics and Thermochemistry (Chemistry, Class 11)](https://vijeeta.com/jee/chemistry/thermodynamics-and-thermochemistry): 5.1/100 marks weight, 38 PYQs, 1954 questions
- [Chemical Kinetics (Chemistry, Class 12)](https://vijeeta.com/jee/chemistry/chemical-kinetics): 4.5/100 marks weight, 44 PYQs, 1283 questions
- [Biomolecules (Chemistry, Class 12)](https://vijeeta.com/jee/chemistry/biomolecules): 4.4/100 marks weight, 36 PYQs, 835 questions
- [Electrochemistry (Chemistry, Class 12)](https://vijeeta.com/jee/chemistry/electrochemistry): 4.4/100 marks weight, 41 PYQs, 1386 questions
- [Alkyl and Aryl Halides (Chemistry, Class 12)](https://vijeeta.com/jee/chemistry/alkyl-and-aryl-halides): 4.2/100 marks weight, 26 PYQs, 1174 questions
- [Periodic Properties (Chemistry, Class 11)](https://vijeeta.com/jee/chemistry/periodic-properties): 3.8/100 marks weight, 47 PYQs, 1326 questions
- [Solutions (Chemistry, Class 12)](https://vijeeta.com/jee/chemistry/solutions): 3.7/100 marks weight, 43 PYQs, 1521 questions
- [Structure of Atom (Chemistry, Class 11)](https://vijeeta.com/jee/chemistry/structure-of-atom): 3.7/100 marks weight, 36 PYQs, 1738 questions
- [Aldehydes and Ketones (Chemistry, Class 12)](https://vijeeta.com/jee/chemistry/aldehydes-and-ketones): 3.6/100 marks weight, 44 PYQs, 1160 questions
- [p -block Elements (group 15-18) (Chemistry, Class 12)](https://vijeeta.com/jee/chemistry/p-block-elements-group-15-18): 3.5/100 marks weight, 19 PYQs, 1254 questions
- [Amines (Chemistry, Class 12)](https://vijeeta.com/jee/chemistry/amines): 3.3/100 marks weight, 31 PYQs, 722 questions
- [Hydrocarbons (Chemistry, Class 11)](https://vijeeta.com/jee/chemistry/hydrocarbons): 3.3/100 marks weight, 39 PYQs, 1349 questions
- [Alcohols, Phenols and Ethers (Chemistry, Class 12)](https://vijeeta.com/jee/chemistry/alcohols-phenols-and-ethers): 2.9/100 marks weight, 18 PYQs, 999 questions
- [Chemical Equilibrium (Chemistry, Class 11)](https://vijeeta.com/jee/chemistry/chemical-equilibrium): 2.0/100 marks weight, 20 PYQs, 1056 questions
- [Ionic Equilibrium (Chemistry, Class 11)](https://vijeeta.com/jee/chemistry/ionic-equilibrium): 1.9/100 marks weight, 21 PYQs, 1283 questions
- [Redox Reactions (Chemistry, Class 11)](https://vijeeta.com/jee/chemistry/redox-reactions): 1.3/100 marks weight, 13 PYQs, 1210 questions
- [p-block elements (group 13 and 14) (Chemistry, Class 11)](https://vijeeta.com/jee/chemistry/p-block-elements-group-13-and-14): 1.0/100 marks weight, 14 PYQs, 791 questions
- [Carboxylic Acid and Its Derivatives (Chemistry, Class 12)](https://vijeeta.com/jee/chemistry/carboxylic-acid-and-its-derivatives): 0.2/100 marks weight, 14 PYQs, 622 questions
- [Chemistry in Everyday Life (Chemistry, Class 12)](https://vijeeta.com/jee/chemistry/chemistry-in-everyday-life): 0.2/100 marks weight, 0 PYQs, 255 questions
- [Metallurgy (Chemistry, Class 12)](https://vijeeta.com/jee/chemistry/metallurgy): 0.2/100 marks weight, 2 PYQs, 692 questions
- [Solid State (Chemistry, Class 12)](https://vijeeta.com/jee/chemistry/solid-state): 0.1/100 marks weight, 2 PYQs, 709 questions
- [Basic Maths in Chemistry (Chemistry, Class 11)](https://vijeeta.com/jee/chemistry/basic-maths-in-chemistry): 0.0/100 marks weight, 0 PYQs, 53 questions
- [Environmental Chemistry (Chemistry, Class 11)](https://vijeeta.com/jee/chemistry/environmental-chemistry): 0.0/100 marks weight, 0 PYQs, 340 questions
- [Gaseous State (Chemistry, Class 11)](https://vijeeta.com/jee/chemistry/gaseous-state): 0.0/100 marks weight, 11 PYQs, 1304 questions
- [General Inorganic Chemistry (Chemistry, Class 12)](https://vijeeta.com/jee/chemistry/general-inorganic-chemistry): 0.0/100 marks weight, 0 PYQs, 124 questions
- [General Organic Chemistry (Revision) & Isomerism (Chemistry, Class 12)](https://vijeeta.com/jee/chemistry/general-organic-chemistry-revision-isomerism): 0.0/100 marks weight, 8 PYQs, 836 questions
- [Hydrogen (Chemistry, Class 11)](https://vijeeta.com/jee/chemistry/hydrogen): 0.0/100 marks weight, 0 PYQs, 503 questions
- [Polymers (Chemistry, Class 12)](https://vijeeta.com/jee/chemistry/polymers): 0.0/100 marks weight, 2 PYQs, 318 questions
- [Surface Chemistry (Chemistry, Class 12)](https://vijeeta.com/jee/chemistry/surface-chemistry): 0.0/100 marks weight, 2 PYQs, 554 questions
- [The s-block elements (Chemistry, Class 11)](https://vijeeta.com/jee/chemistry/the-s-block-elements): 0.0/100 marks weight, 0 PYQs, 678 questions
- [3D Geometry (Mathematics, Class 12)](https://vijeeta.com/jee/maths/3d-geometry): 7.7/100 marks weight, 55 PYQs, 1617 questions
- [Sequence and Series (Mathematics, Class 11)](https://vijeeta.com/jee/maths/sequence-and-series): 7.0/100 marks weight, 48 PYQs, 2155 questions
- [Matrices and Determinants (Mathematics, Class 12)](https://vijeeta.com/jee/maths/matrices-and-determinants): 6.8/100 marks weight, 55 PYQs, 2446 questions
- [Differential Equation (Mathematics, Class 12)](https://vijeeta.com/jee/maths/differential-equation): 5.8/100 marks weight, 34 PYQs, 1310 questions
- [Vectors (Mathematics, Class 12)](https://vijeeta.com/jee/maths/vectors): 5.5/100 marks weight, 42 PYQs, 1676 questions
- [Application of Derivatives (Mathematics, Class 12)](https://vijeeta.com/jee/maths/application-of-derivatives): 5.0/100 marks weight, 28 PYQs, 2290 questions
- [Permutations and Combinations (Mathematics, Class 11)](https://vijeeta.com/jee/maths/permutations-and-combinations): 4.8/100 marks weight, 42 PYQs, 2057 questions
- [Definite Integrals (Mathematics, Class 12)](https://vijeeta.com/jee/maths/definite-integrals): 4.5/100 marks weight, 41 PYQs, 1587 questions
- [Probability (Mathematics, Class 11)](https://vijeeta.com/jee/maths/probability): 4.5/100 marks weight, 39 PYQs, 1852 questions
- [Complex Numbers (Mathematics, Class 11)](https://vijeeta.com/jee/maths/complex-numbers): 4.0/100 marks weight, 36 PYQs, 1750 questions
- [Area under curves (Mathematics, Class 12)](https://vijeeta.com/jee/maths/area-under-curves): 3.9/100 marks weight, 36 PYQs, 926 questions
- [Straight lines & pair of st. lines (Mathematics, Class 11)](https://vijeeta.com/jee/maths/straight-lines-pair-of-st-lines): 3.6/100 marks weight, 30 PYQs, 1943 questions
- [Limits and Derivatives (Mathematics, Class 11)](https://vijeeta.com/jee/maths/limits-and-derivatives): 2.9/100 marks weight, 26 PYQs, 1326 questions
- [Trigonometry (Mathematics, Class 11)](https://vijeeta.com/jee/maths/trigonometry): 2.9/100 marks weight, 24 PYQs, 2998 questions
- [Circles (Mathematics, Class 11)](https://vijeeta.com/jee/maths/circles): 2.8/100 marks weight, 24 PYQs, 1698 questions
- [Quadratic Equations (Mathematics, Class 11)](https://vijeeta.com/jee/maths/quadratic-equations): 2.8/100 marks weight, 22 PYQs, 1828 questions
- [Binomial Theorem (Mathematics, Class 11)](https://vijeeta.com/jee/maths/binomial-theorem): 2.5/100 marks weight, 32 PYQs, 1365 questions
- [Continuity, Differentiability & Differentiation (Mathematics, Class 11)](https://vijeeta.com/jee/maths/continuity-differentiability-differentiation): 2.5/100 marks weight, 25 PYQs, 1910 questions
- [Inverse Trigonometric Functions (Mathematics, Class 12)](https://vijeeta.com/jee/maths/inverse-trigonometric-functions): 2.4/100 marks weight, 19 PYQs, 1033 questions
- [Statistics (Mathematics, Class 11)](https://vijeeta.com/jee/maths/statistics): 2.2/100 marks weight, 15 PYQs, 763 questions
- [Indefinite Integration (Mathematics, Class 12)](https://vijeeta.com/jee/maths/indefinite-integration): 1.9/100 marks weight, 15 PYQs, 1168 questions
- [Conic Sections (Mathematics, Class 11)](https://vijeeta.com/jee/maths/conic-sections): 1.8/100 marks weight, 2 PYQs, 136 questions
- [Ellipse (Mathematics, Class 11)](https://vijeeta.com/jee/maths/ellipse): 1.8/100 marks weight, 29 PYQs, 755 questions
- [Hyperbola (Mathematics, Class 11)](https://vijeeta.com/jee/maths/hyperbola): 1.8/100 marks weight, 17 PYQs, 519 questions
- [Parabola (Mathematics, Class 11)](https://vijeeta.com/jee/maths/parabola): 1.8/100 marks weight, 25 PYQs, 954 questions
- [Basic Mathematics (Mathematics, Class 11)](https://vijeeta.com/jee/maths/basic-mathematics): 0.0/100 marks weight, 15 PYQs, 2537 questions
- [Relation and Functions (Mathematics, Class 12)](https://vijeeta.com/jee/maths/relation-and-functions): 0.0/100 marks weight, 44 PYQs, 1312 questions
- [Sets, Relations & Function (Mathematics, Class 11)](https://vijeeta.com/jee/maths/sets-relations-function): 0.0/100 marks weight, 21 PYQs, 1698 questions