JEE Main · Physics · Ray Optics and Optical Instruments
Base Parallel Property at Minimum Deviation
JEE Main asked Base Parallel Property at Minimum Deviation once in the 108 shifts Lumi analysed, on 31 Aug 2021, Shift 2. It belongs to Prism Deviation, in Ray Optics and Optical Instruments (Physics).
Updated 2026-10-24
- Times asked
- 1
- in 1 shift
- Years
- 1 of 8
- First asked
- 2021
- the only year
- Pattern
- Gone quiet
- asked once so far
Questions on this idea a shift, by year
2017–2026. Asked in 2021. 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: 0 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
Numerical value is the usual form. Skill tested: multi-step.
- Travel time of ray in prism at minimum deviation
Difficulty
1 of the 1 question had a numerical answer.
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: 31 Aug 2021, Shift 2.
Same topic
Other ideas in Prism Deviation
Prism Deviation has 9 ideas JEE Main has asked; 4 of them came up in more than one question.
- Minimum Deviation Condition9× · 2026
- Prism Refractive Index3× · 2026
- TIR at Second Face Condition2× · 2026
- Achromatic Prism Combination2× · 2022
- Angular Dispersiononce · 2024
- Liquid-Filled Equilateral Prismonce · 2023
- Grazing Emergence Conditiononce · 2022
- Prism in Surrounding Mediumonce · 2021