JEE Main 2020 · PhysicsMultiple choiceSingle correctMediumMulti-step

JEE Main 2 September 2020, Shift 2, Physics Q18

Question 18 of 75 in this shift, Physics question 18 of 25.

In a hydrogen atom the electron makes a transition from

(n+1)^{\mathrm{th}}

level to the

n^{\mathrm{th}}

level. If n>>1, the frequency of radiation emitted is proportional to :

(1) $\frac{1}{n}$
(2) $\frac{1}{n^2}$
(3) $\frac{1}{n^4}$
(4) $\frac{1}{n^3}$ Official answer

Official answer

Option 4

NTA final key (Sep 2020).

Chapter: Atoms
Topic: Bohr's Atomic Model
Idea tested: Bohr's Correspondence Principle

Same topic in other shifts

All Bohr's Atomic Model questions

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Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.