Geometrical Optics — JEE Main Previous Year Questions

246 solved PYQs · 2016–2026 · Physics

Solved PYQs: 246
Years covered: 2016–2026
Avg / year: ~22
Subject: Physics

How many JEE Main questions come from Geometrical Optics?

Geometrical Optics has contributed 246 questions to Joint Entrance Examination (Main) papers between 2016 and 2026 — an average of about 22 questions a year. That count is measured from EByAi’s bank of 55,289 JEE Main questions, not estimated from a syllabus. Every one of the 246 questions carries a written, step-by-step solution, and each is tagged to Geometrical Optics within Physics, so you can drill this chapter across every year at once instead of hunting through paper PDFs. Practising a chapter’s full PYQ history is the fastest way to learn the patterns examiners reuse.

Sample Geometrical Optics questions from real JEE Main papers

These are 5 real questions from the bank — exactly as asked, with the answer one tap away. All 246 Geometrical Optics questions (with full written solutions) are available in practice.

Question 1 · JEE Main 2026
For a thin symmetric prism made of glass (refractive index 1.5), the ratio of incident angle and minimum deviation will be _______.
1. (A) $3 : 4$
2. (B) $3 : 2$
3. (C) $2 : 1$
4. (D) $1 : 2$
Show answerAnswer
$Answer: (B) 3 : 2$
Question 2 · JEE Main 2025
Two thin convex lenses of focal lengths 30 cm and 10 cm are placed coaxially, 10 cm apart. The power of this combination is:
1. (A) $5 D$
2. (B) $1 D$
3. (C) $20 D$
4. (D) $10 D$
Show answerAnswer
$Answer: (D) 10 D$
Question 3 · JEE Main 2025
What is the relative decrease in focal length of a lens for an increase in optical power by 0.1 D from 2.5D ? ['D' stands for dioptre]
1. (A) $0.04$
2. (B) $0.1$
3. (C) $0.40$
4. (D) $0.01$
Show answerAnswer
$Answer: (A) 0.04$
Question 4 · JEE Main 2025
The radii of curvature for a thin convex lens are 10 cm and 15 cm respectively. The focal length of the lens is 12 cm. The refractive index of the lens material is
1. (A) $1.4$
2. (B) $1.8$
3. (C) $1.5$
4. (D) $1.2$
Show answerAnswer
$Answer: (C) 1.5$
Question 5 · JEE Main 2025
A convex lens made of glass (refractive index = 1.5) has focal length 24 cm in air. When it is totally immersed in water (refractive index = 1.33), its focal length changes to
1. (A) $96 cm$
2. (B) $72 cm$
3. (C) $24 cm$
4. (D) $48 cm$
Show answerAnswer
$Answer: (A) 96 cm$

Geometrical Optics questions by year

Year	Questions	Share of chapter questions
2026	35
2025	41
2024	21
2023	33
2022	29
2021	32
2020	20
2019	22
2018	4
2017	3
2016	6

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FAQs

How many JEE Main questions have been asked from Geometrical Optics?

EByAi's bank holds 246 real JEE Main questions from Geometrical Optics, asked between 2016 and 2026 — about 22 per year on average. Every count is measured from actual papers, not estimated.

Is Geometrical Optics important for JEE Main?

246 questions over 11 papers make Geometrical Optics a high-weightage chapter in JEE Main Physics. The year-wise table above shows exactly how often it appears.

Can I solve Geometrical Optics PYQs online for free?

Yes. EByAi lets you solve JEE Main past-year questions in the browser with written solutions — free daily practice, no card needed.

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