JEE Main · Physics · Dual Nature of Radiation and Matter
Intensity vs Frequency Effects
JEE Main asked Intensity vs Frequency Effects 3 times in 3 of the 108 shifts Lumi analysed, in 2021, 2023 and 2024. It belongs to Photoelectric Effect, in Dual Nature of Radiation and Matter (Physics). The longest wait between two years asking it was 2 years.
Updated 2026-10-24
- Times asked
- 3
- in 3 shifts
- Years
- 3 of 8
- First asked
- 2021
- last in 2024
- Pattern
- Comes in cycles
- across the analysed shifts
Questions on this idea a shift, by year
2017–2026. Asked in 2021, 2023 and 2024. 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: 1 in 12 shifts · 2024: 1 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
Diagram based is the usual form. Skill tested: conceptual.
- Count correct statements on photoelectric effect
- Graph interpretation of photocurrent vs potential
Difficulty
Every question was multiple choice.
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.
- 4 Apr 2024, Shift 1 · Q46Which figure shows the correct variation of applied potential difference (V) with photoelectric current (I) at two different intensities…EasyDiagram basedHas a figure
- 8 Apr 2023, Shift 2 · Q45In photo electric effect A. The photocurrent is proportional to the intensity of the incident radiation. B. Maximum Kinetic energy with…EasyOther
- 27 Aug 2021, Shift 1 · Q18In a photoelectric experiment, increasing the intensity of incident light :EasySingle correct
Shifts: 27 Aug 2021, Shift 1, 8 Apr 2023, Shift 2, 4 Apr 2024, Shift 1.
Same topic
Other ideas in Photoelectric Effect
Photoelectric Effect has 15 ideas JEE Main has asked; 13 of them came up in more than one question. The 12 most asked are below.
- Einstein's Photoelectric Equation14× · 2026
- Work Function and Threshold10× · 2025
- Two-Wavelength System of Equations7× · 2026
- Photon Flux and Beam Power7× · 2024
- Photon Energy and Momentum5× · 2026
- Stopping Potential4× · 2024
- Stopping Potential vs Frequency Graph4× · 2023
- Comparative Graphs for Different Metals2× · 2026
- Solving via Two Wavelength Data Points2× · 2026
- Failure of Classical Wave Theory2× · 2024
- K_max versus Frequency Graph2× · 2024
- Photoelectrons in a Magnetic Field2× · 2021