JEE Main 2024 · PhysicsMultiple choiceSingle correctEasyCalculation

JEE Main 27 January 2024, Shift 1, Physics Q47

Question 47 of 90 in this shift, Physics question 17 of 30, Section A.

The radius of third stationary orbit of electron for Bohr's atom is R. The radius of fourth stationary orbit will be :

(1) $\frac{9}{16}$ R
(2) $\frac{16}{9}$ ROfficial answer
(3) $\frac{4}{3}$ R
(4) $\frac{3}{4}$ R

Official answer

Option 2

NTA final key.

Chapter: Atoms
Topic: Bohr's Atomic Model
Idea tested: Bohr Orbit Radius

Same idea in other shifts

Asked 6× in all

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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.