JEE Main · Physics · Waves
Moving Observer Cases
JEE Main asked Moving Observer Cases once in the 108 shifts Lumi analysed, on 27 Jun 2022, Shift 1. It belongs to Doppler Effect, in Waves (Physics).
Updated 2026-10-24
- Times asked
- 1
- in 1 shift
- Years
- 1 of 8
- First asked
- 2022
- the only year
- Pattern
- Occasional
- asked once so far
Questions on this idea a shift, by year
2017–2026. Asked in 2022. 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: 1 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
Single correct is the usual form. Skill tested: calculation.
- Percentage change in frequency for moving observer
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: 27 Jun 2022, Shift 1.
Same topic
Other ideas in Doppler Effect
Doppler Effect has 8 ideas JEE Main has asked; 5 of them came up in more than one question.
- Moving Reflector Echo3× · 2023
- Moving Source Cases3× · 2023
- Doppler Beat Frequency Calculation2× · 2022
- Light Doppler Approximation2× · 2022
- General Doppler Formula2× · 2021
- Effect of Wind Velocityonce · 2022
- Exact Relativistic Doppler Formulaonce · 2017