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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.
NTA JEE Main 2026 syllabus
Appeared in 100% of papers (2015–2025)
Why This Topic
Added 6 Sep 2026 from the NTA JEE Main 2026 syllabus unit 'Units and Measurements'. Read in NCERT: Physics XI Ch 1: Units and Measurement. Weightage shown is derived from the NTA pattern (25 questions per subject across the syllabus units), not from a paper-by-paper count.
⚡ Quick Win
Assuming an equation is fully correct just because its dimensions match — dimensionless factors like 2, π, 1/2 are invisible to dimensional analysis.
NTA JEE Main 2026 syllabus
Appeared in 100% of papers (2015–2025)
Why This Topic
Added 6 Sep 2026 from the NTA JEE Main 2026 syllabus unit 'Kinematics'. Read in NCERT: Physics XI Ch 2: Motion in a Straight Line; Physics XI Ch 3: Motion in a Plane. Weightage shown is derived from the NTA pattern (25 questions per subject across the syllabus units), not from a paper-by-paper count.
⚡ Quick Win
Confusing distance (always positive, total path) with displacement (signed, net change). Average speed uses distance, average velocity uses displacement.
NTA JEE Main 2026 syllabus
Appeared in 100% of papers (2015–2025)
Why This Topic
Added 6 Sep 2026 from the NTA JEE Main 2026 syllabus unit 'Gravitation'. Read in NCERT: Physics XI Ch 7: Gravitation. Weightage shown is derived from the NTA pattern (25 questions per subject across the syllabus units), not from a paper-by-paper count.
⚡ Quick Win
Using g_h ≈ g(1 − 2h/R) when h is comparable to R — the linear form is only a small-h approximation; use the exact (R/(R+h))² for large h.
NTA JEE Main 2026 syllabus
Appeared in 100% of papers (2015–2025)
Why This Topic
Added 6 Sep 2026 from the NTA JEE Main 2026 syllabus unit 'Properties of Solids and Liquids'. Read in NCERT: Physics XI Ch 8: Mechanical Properties of Solids; Physics XI Ch 9: Mechanical Properties of Fluids; Physics XI Ch 10: Thermal Properties of Matter. Weightage shown is derived from the NTA pattern (25 questions per subject across the syllabus units), not from a paper-by-paper count.
⚡ Quick Win
>Forgetting that energy density stored is ½·stress·strain, not stress·strain; the factor ½ comes from average force during gradual stretching.
NTA JEE Main 2026 syllabus
Appeared in 100% of papers (2015–2025)
Why This Topic
Added 6 Sep 2026 from the NTA JEE Main 2026 syllabus unit 'Thermodynamics'. Read in NCERT: Physics XI Ch 11: Thermodynamics. Weightage shown is derived from the NTA pattern (25 questions per subject across the syllabus units), not from a paper-by-paper count.
⚡ Quick Win
Sign of work confusion: In the NCERT/physics convention the first law is Q = ΔU + W where W is work done BY the gas. Many students mix this with the chemistry c
NTA JEE Main 2026 syllabus
Appeared in 100% of papers (2015–2025)
Why This Topic
Added 6 Sep 2026 from the NTA JEE Main 2026 syllabus unit 'Kinetic Theory of Gases'. Read in NCERT: Physics XI Ch 12: Kinetic Theory. Weightage shown is derived from the NTA pattern (25 questions per subject across the syllabus units), not from a paper-by-paper count.
⚡ Quick Win
Forgetting to convert temperature to Kelvin. All gas-law and kinetic-theory formulas (PV = nRT, v_rms = √(3RT/M), KE = (3/2)kT) demand absolute temperature. Plu
NTA JEE Main 2026 syllabus
Appeared in 100% of papers (2015–2025)
Why This Topic
Added 6 Sep 2026 from the NTA JEE Main 2026 syllabus unit 'Magnetic Effects of Current and Magnetism'. Read in NCERT: Physics XII Ch 4: Moving Charges and Magnetism; Physics XII Ch 5: Magnetism and Matter. Weightage shown is derived from the NTA pattern (25 questions per subject across the syllabus units), not from a paper-by-paper count.
⚡ Quick Win
Forgetting that a straight segment produces no field at any point lying along its own line (or its extension); students wrongly add a contribution from such col
NTA JEE Main 2026 syllabus
Appeared in 100% of papers (2015–2025)
Why This Topic
Added 6 Sep 2026 from the NTA JEE Main 2026 syllabus unit 'Electromagnetic Waves'. Read in NCERT: Physics XII Ch 8: Electromagnetic Waves. Weightage shown is derived from the NTA pattern (25 questions per subject across the syllabus units), not from a paper-by-paper count.
⚡ Quick Win
>Thinking displacement current involves actual charge motion. It is purely the effect of a changing electric field (dΦ_E/dt).
NTA JEE Main 2026 syllabus
Appeared in 100% of papers (2015–2025)
Why This Topic
Added 6 Sep 2026 from the NTA JEE Main 2026 syllabus unit 'Electronic Devices'. Read in NCERT: Physics XII Ch 14: Semiconductor Electronics: Materials, Devices and Simple Circuits. Weightage shown is derived from the NTA pattern (25 questions per subject across the syllabus units), not from a paper-by-paper count.
⚡ Quick Win
Believing a doped (extrinsic) semiconductor is electrically charged. Adding donors or acceptors changes only the number of MOBILE carriers; every mobile electro
NTA JEE Main 2026 syllabus
Appeared in 100% of papers (2015–2025)
Why This Topic
Added 6 Sep 2026 from the NTA JEE Main 2026 syllabus unit 'Experimental Skills'. Read in NCERT: Physics XI Ch 1: Units and Measurement; Physics XII Ch 3: Current Electricity. Weightage shown is derived from the NTA pattern (25 questions per subject across the syllabus units), not from a paper-by-paper count.
⚡ Quick Win
Forgetting to apply zero error with the correct sign — a positive zero error is subtracted (true = observed − error).
Analysis based on JEE Main papers 2015–2025 (all sessions, all shifts) · NTA official papers
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