JEE Main · Physics · Ray Optics and Optical Instruments
Mirror Formula Application
JEE Main asked Mirror Formula Application 3 times in 3 of the 108 shifts Lumi analysed, in 2021, 2025 and 2026. It belongs to Spherical Mirrors, in Ray Optics and Optical Instruments (Physics). The longest wait between two years asking it was 4 years.
Updated 2026-10-24
- Times asked
- 3
- in 3 shifts
- Years
- 3 of 8
- First asked
- 2021
- last in 2026
- Pattern
- Frequent
- across the analysed shifts
Questions on this idea a shift, by year
2017–2026. Asked in 2021, 2025 and 2026. 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: 1 in 24 shifts · 2022: 0 in 24 shifts · 2023: 0 in 12 shifts · 2024: 0 in 18 shifts · 2025: 1 in 8 shifts · 2026: 1 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.
- Object positions for given magnification in mirror
- Focal length from magnification and image distance
Difficulty
1 of the 3 questions had a numerical answer.
Every question
All 3 questions
From the official JEE Main shift papers, newest first. Open one for the full question, the options and the official answer.
- 6 Apr 2026, Shift 2 · Q50A concave mirror of focal length 10 cm forms an image which is double the size of object when the object is placed at two different…MediumNumerical value
- 7 Apr 2025, Shift 2 · Q40A mirror is used to produce an image with magnification of . If the distance between object and its image is 40 cm, then the…MediumSingle correct
- 27 Aug 2021, Shift 1 · Q16An object is placed beyond the centre of curvature C of the given concave mirror. If the distance of the object is from C…MediumSingle correct
Shifts: 27 Aug 2021, Shift 1, 7 Apr 2025, Shift 2, 6 Apr 2026, 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.
- Linear Magnification3× · 2025
- Image Velocity (Axial Motion)3× · 2023
- Longitudinal Magnificationonce · 2026
- Autocollimation with Plane Mirror Combinationonce · 2025
- 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