Educational Resources
JEE Previous Year Question Papers
with Answers (2019–2024)
📄 JEE Main & Advanced
✅ 6 Years Covered
🔬 Physics · Chemistry · Maths
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360+Questions
6Years
24Papers
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JEE Main
JEE Main 2024 — Jan Session 1
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JEE Main
JEE Main 2024 — Apr Session 2
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JEE Advanced
JEE Advanced 2024 — Paper 1 & 2
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JEE Main
JEE Main 2023 — Jan Session
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JEE Advanced
JEE Advanced 2023 — Paper 1 & 2
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JEE Main
JEE Main 2022 — Session 1 & 2
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JEE Advanced
JEE Advanced 2022 — Paper 1 & 2
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JEE Main
JEE Main 2021 — All 4 Sessions
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📝 Explanation
Horizontal Range R = u² sin 2θ / g. At θ = 45°, sin 90° = 1, so R = u²/g. This is the maximum range for a given initial speed u.
📝 Explanation
Chlorine has the highest electron affinity among halogens (not fluorine) because F has a very small atomic size causing electron–electron repulsion in the compact 2p subshell. Cl's 3p orbital accommodates the extra electron more comfortably.
📝 Explanation
f(x) = x³ − 3x + 2 = (x−1)²(x+2). So roots are x = 1 (repeated) and x = −2. Three real roots counting multiplicity, or 2 distinct real roots. The cubic has 3 real roots with x = 1 as a repeated root.
📝 Explanation
Fringe width β = λD/d. New β' = (2λ)·D / (d/2) = 4λD/d = 4β. Doubling λ doubles β; halving d doubles it again → net 4×.
📝 Explanation
With limited oxidising agent, ethanol → ethanal (CH₃CHO). With excess acidified K₂Cr₂O₇, it further oxidises to ethanoic acid (CH₃COOH). Option D is the most complete answer for JEE context.
📝 Explanation
∫₀^π sin²x dx = ∫₀^π (1 − cos 2x)/2 dx = [x/2 − sin 2x/4]₀^π = π/2 − 0 = π/2.
JEE Main 2024 — January Session
Provisional Answer Key (Official NTA)
Provisional Answer Key (Official NTA)
Physics (Q1–Q30)
Chemistry (Q31–Q60)
Mathematics (Q61–Q90)
ℹ️ Sample answer key for illustration. For official keys visit jeemain.nta.ac.in or jeeadv.ac.in
⚛️ Physics
- Master Mechanics & Electrostatics first — 30–35% weightage
- Solve 10 previous year Qs per topic before moving on
- Waves, Optics & Modern Physics are high-scoring & conceptual
- Draw free-body diagrams for every problem
- Focus on units & dimensions for quick sanity checks
🧪 Chemistry
- Organic: Name reactions + mechanisms are non-negotiable
- Inorganic: NCERT is your bible — read every line
- Physical: Thermodynamics, Equilibrium, Electrochemistry = high yield
- Revise periodic trends weekly — dozens of questions each year
- Make flash cards for reagent-to-product conversions
📐 Mathematics
- Calculus (Integration & Differentiation) = 35–40% of marks
- Coordinate Geometry is the easiest scoring chapter
- Algebra: Sequences, Complex Numbers, P&C — daily 3 Qs
- Attempt Maths last in the exam to maximise accuracy
- Practice mental calculation to save time in MCQs
📅 Exam Strategy
- Attempt 60 full mock tests before the exam — timed
- First 15 min: read all 90 questions, mark easy ones
- Negative marking: skip if less than 70% confident
- Night before: light revision, 8 hrs sleep, no new topics
- Carry admit card + valid ID + stationery (no pencil box)
📖 Recommended Books
- Physics: HC Verma Vol. 1 & 2 + DC Pandey
- Chemistry: NCERT + OP Tandon (Organic)
- Mathematics: RD Sharma + Arihant Skills in Mathematics
- Previous Year PYQs: Disha 45 Years JEE compendium
🎯 JEE Advanced Extra
- Advanced has multi-correct, integer & paragraph questions
- Partial marking and −2 for wrong multi-correct — be careful
- IIT Delhi/Bombay level coaching material is essential
- Solve at least 10 years of Advanced PYQs completely
- Target AIR < 2500 for top 7 IITs — 180+ marks needed
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