JEE Main Optics: Weightage, Key Concepts and Study Plan
Optics in JEE Main: 249 questions across 2022–2026, rank #1 of 20 in Physics, gaining momentum. Year-wise data, key concepts and a study plan.
Edurack
October 21, 2026
Optics is one of the heaviest chapters in JEE Main Physics, and it is getting heavier: its share of the subject went from 7.0% in 2022–23 to 10.5% in 2024–26. Here is what five years of JEE Main questions say about it, and how to prepare.
At a glance
- 249 questions across 2022–2026, all shifts
- 8.6% of Physics over five years and 10.1% in 2024–2026
- Rank #1 of 20 Physics chapters by recent weight
- Momentum: Gaining
- Asked in 5 of 5 years; busiest year 2025 with 63 questions
- 56 questions in the 2026 papers
Year-wise questions
| Year | 2022 | 2023 | 2024 | 2025 | 2026 | Total |
|---|---|---|---|---|---|---|
| Questions | 43 | 49 | 38 | 63 | 56 | 249 |
How Optics compares inside Physics
| Rank | Chapter | Total Qs | 2024–26 share | Momentum |
|---|---|---|---|---|
| 1 | Optics | 249 | 10.1% | Gaining |
| 2 | Properties of Solids and Liquids | 224 | 8.5% | Stable |
| 3 | Electrostatics | 227 | 8.3% | Stable |
Concepts that repeat
These specific ideas came back most often inside Optics.
| Concept | 2022 | 2023 | 2024 | 2025 | 2026 | Total |
|---|---|---|---|---|---|---|
| Lens Maker's Formula | 3 | 1 | 6 | 8 | 9 | 27 |
| Young's Double Slit Experiment | 8 | 2 | 5 | 6 | 5 | 26 |
Start your practice with these. Each one has appeared in every one of the five years, so it is worth knowing the question styles.
What the syllabus covers
Reflection and mirrors, refraction, total internal reflection, lenses and the lens maker's formula, prism, microscope and telescope, wave optics: Huygens' principle, Young's double slit, single-slit diffraction, polarisation and Brewster's law.
A checklist to tick off:
- Reflection and mirrors
- Refraction
- Total internal reflection
- Lenses and the lens maker's formula
- Prism
- Microscope and telescope
- Wave optics: Huygens' principle
- Young's double slit
- Single-slit diffraction
- Polarisation and Brewster's law
What to focus on
Ray optics is the scoring half: sign convention for mirrors and lenses, the lens-maker's formula, total internal reflection and prism deviation. In wave optics, know fringe width in Young's double slit and the single-slit minima conditions.
A study plan for this chapter
Because it is gaining weight, move it up your list and give it extra practice. If you divide your Physics time in proportion to recent weightage, this chapter earns about 10% of it.
- Week 1: one careful pass through theory and solved examples.
- Week 2: chapter-wise PYQs in two sittings. Aim for accuracy first and speed second.
- Week 3: fix every error from your log and take a timed set of 25 mixed questions.
- Ongoing: revisit once a week and again before each mock test.
Keep reading
- The full ranking: JEE Main Physics chapter-wise weightage
- The next chapter down by weight: Properties of Solids and Liquids
- Another heavy hitter: Electrostatics
See Optics on the weightage page →
Frequently Asked Questions
How many questions has Optics had in JEE Main?
249 questions across 2022–2026, counting every shift: 2022: 43, 2023: 49, 2024: 38, 2025: 63, 2026: 56.
Is Optics important for JEE Main Physics?
It ranks #1 of 20 Physics chapters by recent weight, which puts it in tier 1 of 3 for preparation. Its momentum is labelled Gaining.
How should I start Optics?
Ray optics is the scoring half: sign convention for mirrors and lenses, the lens-maker's formula, total internal reflection and prism deviation. Then solve chapter-wise previous-year questions.