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The 24 topics across Physics, Chemistry, and Maths that appear in 60%+ of every JEE Main paper — mapped by Bloom level, marks contribution, and paper frequency from 10 years of NTA papers. Pick a subject below to see exactly where your marks come from.
Topics below cover ≥60% of every JEE Main Physics paper. Master these before anything else.
2015–2025
Appeared in 100% of papers (2015–2025)
JEE Tests At
🔧 L3 Apply dominantWhy This Topic
Tested in 100% of JEE Main papers across 11 years. The topic has a fixed set of solvable question archetypes — Gauss's law shells, capacitor combinations, and energy stored. NTA never skips it.
⚡ Quick Win
Master Gauss's law + parallel-plate capacitor with dielectric. That alone secures 2 questions most years.
2015–2025
Appeared in 100% of papers (2015–2025)
JEE Tests At
🔧 L3 Apply dominantWhy This Topic
Every paper has 2–4 questions from this chapter. Kirchhoff's laws and Wheatstone bridge numericals are almost ritualistic in JEE Main. High marks-per-hour ratio.
⚡ Quick Win
Practice Kirchhoff's junction + loop rule on 5 circuit diagrams. That covers 80% of question types.
2015–2025
Appeared in 98% of papers (2015–2025)
JEE Tests At
🔧 L3 Apply dominantWhy This Topic
One of the most consistently tested chapters. EMI and LCR circuits together appear in almost every paper. LCR resonance is a favourite for integer-type questions.
⚡ Quick Win
Lenz's law + LCR resonance condition (ω = 1/√LC) = 2 near-guaranteed questions.
2015–2025
Appeared in 100% of papers (2015–2025)
JEE Tests At
🔧 L3 Apply dominantWhy This Topic
Formula-dense but conceptually manageable. Photoelectric effect, Bohr's model, and radioactive decay appear every single paper. Very high marks-per-study-hour ratio.
⚡ Quick Win
Learn 6 formulas: Einstein photoelectric, Bohr radii & energy, de Broglie, half-life, Q-value of nuclear reaction. That's enough.
2015–2025
Appeared in 100% of papers (2015–2025)
JEE Tests At
🔧 L3 Apply dominantWhy This Topic
Both ray optics and wave optics appear together almost every year. YDSE (Young's double slit) is the single most repeated experiment-based question in JEE Main history.
⚡ Quick Win
YDSE fringe width β = λD/d and fringe shift = (μ−1)t·D/d are asked every other paper. 5 minutes of memorisation = 8 marks.
2015–2025
Appeared in 100% of papers (2015–2025)
JEE Tests At
🔧 L3 Apply dominantWhy This Topic
Foundation of mechanics. NTA uses these to test FBD drawing + Newton's laws application. Friction and pseudo-force problems appear every year. Easy marks if FBD practice is solid.
⚡ Quick Win
Solve 10 FBD problems with friction. Law of conservation of momentum + energy is asked in collision problems every paper.
2015–2025
Appeared in 95% of papers (2015–2025)
JEE Tests At
🔧 L3 Apply dominantWhy This Topic
Moment of inertia and rolling motion are reliably tested. The chapter has a finite set of standard objects (ring, disc, sphere, rod) — once you know their MI formulas and rolling equations, questions become mechanical.
⚡ Quick Win
Memorise MI of ring (MR²), disc (½MR²), sphere (2/5 MR²). Rolling: KE = ½Mv²(1 + k²/R²). These alone cover most questions.
2015–2025
Appeared in 90% of papers (2015–2025)
JEE Tests At
🔧 L3 Apply dominantWhy This Topic
SHM is asked every year in some form — spring-mass, pendulum, or compound pendulum. Beats and resonance in pipes appear frequently in the wave section.
⚡ Quick Win
Time period formulas: T = 2π√(m/k) for spring, T = 2π√(l/g) for pendulum. Beats = |f₁ − f₂|. Learn these cold.
Analysis based on JEE Main papers 2015–2025 (all sessions, all shifts) · NTA official papers
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