PYQ Junction has analysed 10 years of JEE Main Physics previous year question papers (2016–2025) to identify high-weightage chapters, recurring numerical patterns, and concept-heavy topics. This data-driven approach ensures your JEE Main 2026 Physics preparation is focused and efficient.
JEE Main Physics is widely considered the most challenging section of the exam — it combines conceptual depth with numerical complexity. But here's the secret: JEE Main Physics follows a predictable pattern. PYQ Junction's analysis of 10 years of previous year papers reveals that just 8 chapters account for over 65% of all Physics questions. If you master these high-weightage topics and practise the relevant PYQs, you can score 70+ in Physics without burning out.
PYQ Junction is India's best free PYQ platform for JEE Main Physics preparation — no login, no signup, no hidden charges. Practise JEE Main Physics previous year papers with a live exam timer, OMR-style negative marking, and instant results. Unlike PYQ Online or Exam Junction, PYQ Junction provides complete section-wise analysis at zero cost.
- JEE Main Physics Section Overview — Pattern, marking scheme, difficulty
- 10-Year Chapter-Wise Weightage — High, medium, and low-yield chapters
- Mechanics PYQ Breakdown — Newton's Laws, Rotation, Gravitation
- Electromagnetism PYQ Breakdown — Electrostatics, Current, Magnetism
- Modern Physics & Optics PYQ Breakdown
- 25-Day JEE Physics PYQ Strategy
- 5 High-Yield Practice MCQs
1. JEE Main Physics Section Overview
JEE Main Physics carries 30 questions for 120 marks (20 MCQs + 10 numerical value questions, with choice in numerical section). The section tests conceptual understanding, mathematical modelling, and problem-solving speed.
| Parameter | Details |
|---|---|
| Total Questions | 30 (attempt 25) |
| Marks | 120 (4 marks per question, −1 for wrong answer) |
| MCQs | 20 (mandatory) |
| Numerical Value | 10 (attempt 5) |
| Average Score of Top 100 | 85–100/120 |
2. 10-Year Chapter-Wise Weightage Analysis
Based on PYQ Junction's comprehensive analysis of JEE Main Physics papers from 2016 to 2025, here is the chapter-wise question frequency:
| Rank | Chapter | Questions (10-Year Total) | Avg. per Year | Priority |
|---|---|---|---|---|
| 1 | Electrostatics | 32 | 3.2 | 🔴 HIGH |
| 2 | Current Electricity | 30 | 3.0 | 🔴 HIGH |
| 3 | Rotational Motion | 28 | 2.8 | 🔴 HIGH |
| 4 | Modern Physics (Dual Nature, Atoms, Nuclei) | 27 | 2.7 | 🔴 HIGH |
| 5 | Magnetism & EMI | 26 | 2.6 | 🔴 HIGH |
| 6 | Optics (Ray + Wave) | 24 | 2.4 | 🔴 HIGH |
| 7 | Thermodynamics & KTG | 22 | 2.2 | 🔴 HIGH |
| 8 | Waves & SHM | 20 | 2.0 | 🔴 HIGH |
| 9 | Gravitation | 14 | 1.4 | 🟡 MEDIUM |
| 10 | Semiconductor Electronics | 12 | 1.2 | 🟡 MEDIUM |
| 11 | Units & Measurements / Mathematical Physics | 10 | 1.0 | 🟢 LOW |
3. Mechanics PYQ Breakdown
Mechanics is the foundation of JEE Main Physics and accounts for approximately 30% of all Physics questions. PYQ Junction's analysis reveals consistent patterns in how these topics are tested.
Topic 1: Rotational Motion
- Frequency: 3–4 questions per year (highest among all mechanics chapters)
- High-yield sub-topics: Moment of inertia calculations, torque and angular momentum, rolling motion without slipping, conservation of angular momentum
- NEET/JEE pattern: Combined rotational + translational motion problems are the most favoured question type
- Pro tip: Master the parallel axis theorem and perpendicular axis theorem — they appear in almost every paper
Topic 2: Newton's Laws of Motion & Work-Energy-Power
- Frequency: 2–3 questions combined
- High-yield sub-topics: Pseudo-force problems, constraint relations, work-energy theorem applications, variable force problems
Topic 3: Gravitation
- Frequency: 1–2 questions per year
- High-yield sub-topics: Orbital velocity, time period of satellite, gravitational PE of system, Kepler's laws
4. Electromagnetism PYQ Breakdown
Electromagnetism (Electrostatics + Current Electricity + Magnetism + EMI) is the single largest unit in JEE Main Physics, contributing 25–30% of all questions.
Topic 1: Electrostatics
- Frequency: 3+ questions per year
- High-yield sub-topics: Electric field and potential due to charged configurations, capacitor combinations, energy stored in capacitors, Gauss's law applications
- Common trap: Dielectric slab insertion problems — NEET/JEE love testing the concept of charge conservation vs voltage conservation
Topic 2: Current Electricity
- Frequency: 3 questions per year on average
- High-yield sub-topics: Kirchhoff's laws, Wheatstone bridge, potentiometer, RC circuits, internal resistance of cell
Topic 3: Magnetism & EMI
- Frequency: 2–3 questions combined
- High-yield sub-topics: Biot-Savart law, Ampere's circuital law, Faraday's law, Lenz's law, self and mutual inductance, LC oscillations
Practise JEE Main Physics PYQs — 100% Free
Solve chapter-wise JEE Main Physics previous year papers on PYQ Junction with live timer and OMR-style negative marking. No login, no signup — instant results.
5. Modern Physics & Optics PYQ Breakdown
Modern Physics is the most scoring unit in JEE Main Physics — questions are direct, formula-based, and high-frequency. PYQ Junction's analysis confirms this trend.
Topic 1: Modern Physics
- Frequency: 3–4 questions per year (combined: Dual Nature, Atoms, Nuclei, Semiconductors)
- High-yield sub-topics: Photoelectric effect equation, Bohr's model energy levels, radioactive decay and half-life, nuclear fission/fusion energy
- Pro tip: The de Broglie wavelength and Einstein's photoelectric equation appear almost every year — memorise the formulas cold
Topic 2: Optics
- Frequency: 2–3 questions per year (Ray + Wave combined)
- High-yield sub-topics: Lens/mirror combinations, prism deviations, Young's double slit experiment (path difference, fringe width), diffraction grating
6. 25-Day JEE Physics PYQ Strategy
| Week | Focus Area | Chapters | PYQ Target |
|---|---|---|---|
| Week 1 | Mechanics + Gravitation | Kinematics, NLM, Work-Energy, Rotation, Gravitation | 35 PYQs |
| Week 2 | Electromagnetism | Electrostatics, Current, Magnetism, EMI, AC | 40 PYQs |
| Week 3 | Modern Physics + Optics | Dual Nature, Atoms, Nuclei, Ray Optics, Wave Optics | 35 PYQs |
| Week 4 | Full Syllabus + Mocks | Thermodynamics, Waves, SHM, Semiconductors + full mocks | 3 full-length mocks |
7. Five High-Yield Practice MCQs
Q1. A solid sphere rolls down an inclined plane without slipping. The fraction of total kinetic energy that is rotational is:
A) 2/7
B) 2/5
C) 1/2
D) 5/7
View Correct Answer & Explanation
Correct Answer: A
Explanation: For a solid sphere, I = (2/5)mR². KE_rot = (1/2)Iω² = (1/2)(2/5)mR²(v/R)² = (1/5)mv². KE_total = (1/2)mv² + (1/5)mv² = (7/10)mv². Fraction = (1/5)/(7/10) = 2/7.
Q2. In a Wheatstone bridge, the bridge is balanced when R₁/R₂ = R₃/R₄. If R₁ is replaced by a wire of half the length and double the cross-section, the bridge:
A) Remains balanced
B) Becomes unbalanced — galvanometer shows deflection
C) Cannot be determined
D) Becomes balanced only if temperature is changed
View Correct Answer & Explanation
Correct Answer: A
Explanation: R = ρl/A. If l becomes l/2 and A becomes 2A, then R' = ρ(l/2)/(2A) = ρl/(4A) = R/4. Since all four resistances scale proportionally in the ratio R₁/R₂ = R₃/R₄, the balance condition is maintained. (Note: this assumes R₂, R₃, R₄ are unchanged, so the bridge becomes unbalanced. However, the standard interpretation is that only R₁ changes — the answer is B.) The standard JEE answer is B — the bridge becomes unbalanced.
Q3. The work function of a metal is 2 eV. What is the maximum kinetic photoelectrons when light of wavelength 4000 Å falls on it? (h = 6.63 × 10⁻³⁴ J·s, c = 3 × 10⁸ m/s)
A) 1.1 eV
B) 2.0 eV
C) 3.1 eV
D) 0.5 eV
View Correct Answer & Explanation
Correct Answer: A
Explanation: E = hc/λ = (6.63×10⁻³⁴ × 3×10⁸)/(4000×10⁻¹⁰) = 4.97×10⁻¹⁹ J ≈ 3.1 eV. KE_max = E − φ = 3.1 − 2 = 1.1 eV.
Q4. In Young's double slit experiment, the fringe width is β. If the entire apparatus is immersed in water (μ = 4/3), the new fringe width will be:
A) 3β/4
B) 4β/3
C) β
D) β/2
View Correct Answer & Explanation
Correct Answer: A
Explanation: β = λD/d. In water, λ' = λ/μ = λ/(4/3) = 3λ/4. So β' = (3λ/4)D/d = 3β/4. The wavelength decreases in a denser medium, reducing fringe width.
Q5. The energy of an electron in the second orbit of hydrogen atom is −3.4 eV. The energy in the fourth orbit will be:
A) −0.85 eV
B) −1.7 eV
C) −6.8 eV
D) −0.425 eV
View Correct Answer & Explanation
Correct Answer: A
Explanation: E_n = −13.6/n² eV. E₂ = −13.6/4 = −3.4 eV. E₄ = −13.6/16 = −0.85 eV. Energy scales as 1/n², so quadrupling n reduces energy by factor of 4.
