JEE Main 2021 · PhysicsMultiple choiceSingle correctEasyConceptual

JEE Main 24 February 2021, Shift 2, Physics Q17

Question 17 of 90 in this shift, Physics question 17 of 30, Section A.

According to Bohr atom model, in which of the following transitions will the frequency be maximum ?

(1) $\mathrm{n = 2\ to\ n = 1}$ Official answer
(2) $\mathrm{n = 3\ to\ n = 2}$
(3) $\mathrm{n = 4\ to\ n = 3}$
(4) $\mathrm{n = 5\ to\ n = 4}$

Official answer

Option 1

NTA final key.

Chapter: Atoms
Topic: Bohr's Atomic Model
Idea tested: Energy Level Calculations

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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.