JEE Main · Physics · Ray Optics and Optical Instruments
Autocollimation with Plane Mirror Combination
JEE Main asked Autocollimation with Plane Mirror Combination once in the 108 shifts Lumi analysed, on 4 Apr 2025, Shift 2. It belongs to Spherical Mirrors, in Ray Optics and Optical Instruments (Physics).
Updated 2026-10-24
- Times asked
- 1
- in 1 shift
- Years
- 1 of 8
- First asked
- 2025
- the only year
- Pattern
- New since 2024
- asked once so far
Questions on this idea a shift, by year
2017–2026. Asked in 2025. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Physics questions.
Raw count: 2017: 0 in 1 shift · 2020: 0 in 12 shifts · 2021: 0 in 24 shifts · 2022: 0 in 24 shifts · 2023: 0 in 12 shifts · 2024: 0 in 18 shifts · 2025: 1 in 8 shifts · 2026: 0 in 9 shifts.
Shift by shift
Each square is one analysed shift, in date order. Open a filled one for that paper.
How JEE Main framed it
Single correct is the usual form. Skill tested: multi-step.
- Separation of plane and convex mirrors for coincident images
Difficulty
The question was multiple choice.
Every question
The question
From the official JEE Main shift papers, newest first. Open one for the full question, the options and the official answer.
Shift: 4 Apr 2025, Shift 2.
Same topic
Other ideas in Spherical Mirrors
Spherical Mirrors has 12 ideas JEE Main has asked; 3 of them came up in more than one question.
- Mirror Formula Application3× · 2026
- Linear Magnification3× · 2025
- Image Velocity (Axial Motion)3× · 2023
- Longitudinal Magnificationonce · 2026
- Concave Mirror: Virtual Image Caseonce · 2022
- Multiple Reflections in Two-Mirror Systemsonce · 2022
- Virtual Object in Convex Mirroronce · 2022
- Field of View of Spherical Mirrorsonce · 2021
- Focal Length Relationonce · 2021
- Concave Mirror: Real Image Casesonce · 2020
- Magnification vs Object Distance Graphonce · 2020