JEE Main 2026 — Structure of Atom Question with Solution
JEE Main 2026 (28 January Shift 2)
Question
The wavelength of photon ' A ' is 400 nm. The frequency of photon ' B ' is . The wave number of photon ' is . The correct order of energy of these photons is :
Choose an option
Show full solutionCorrect option: B
Correct answer
B
Step-by-step explanation
Photon A: nm
J
Photon B: s⁻¹
J
Photon C: cm⁻¹ = m⁻¹
m
J
Order:
J
Photon B: s⁻¹
J
Photon C: cm⁻¹ = m⁻¹
m
J
Order:
Practice this on the real CBT interface
Solve this JEE Main question (and the rest of the Structure of Atom chapter) on PrepSharp's TCS iON-style CBT player — with timer, bookmarks and session analytics.
Solve interactively →About this question
This is a previous-year question from JEE Main 2026, covering the Structure of Atom chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.