JEE Main 2024 · PhysicsMultiple choiceSingle correctEasyConceptual

JEE Main 5 April 2024, Shift 2, Physics Q48

Question 48 of 90 in this shift, Physics question 18 of 30, Section A.

The angular momentum of an electron in a hydrogen atom is proportional to : (Where r is the radius of orbit of electron)

(1) $\sqrt{r}$ Official answer
(2) $\frac{1}{\sqrt{r}}$
(3) $r$
(4) $\frac{1}{r}$

Official answer

Option 1

NTA final key.

Chapter: Atoms
Topic: Bohr's Atomic Model
Idea tested: Angular Momentum Quantization

Same idea in other shifts

Asked 9× in all

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17 Mar 2021, Shift 2 · Q29A particle of mass m moves in a circular orbit in a central potential field $\mathrm{U(r)=U_0r^4}$ . If Bohr's quantization conditions are…MediumNumerical value

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.