JEE Main 2013PhysicsAtomic PhysicsMediumMCQ

JEE Main 2013 — Atomic Physics Question with Solution

JEE Main 2013 (07 Apr)

Question

In a hydrogen like atom electron makes transition from an energy level with quantum number n to another with quantum number n - 1 . If n >> 1 , the frequency of radiation emitted is proportional to :

Choose an option

Show full solutionCorrect option: B
Correct answer
B 1 n 3

Step-by-step explanation

Δ E = h ν
ν = Δ E h = k 1 n - 1 2 - 1 n 2 = k 2 n n 2 n - 1 2

≈ 2 k n 3 ∝ 1 n 3

Practice this on the real CBT interface

Solve this JEE Main question (and the rest of the Atomic Physics 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 2013, covering the Atomic Physics chapter of Physics. 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.