JEE Main 2022 · PhysicsMultiple choiceSingle correctEasyCalculation

JEE Main 27 June 2022, Shift 1, Physics Q48

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

A hydrogen atom in its ground state absorbs 10.2 eV of energy. The angular momentum of electron of the hydrogen atom will increase by the value of : (Given, Planck’s constant

=6.6\times10^{-34}

Js).

(1) $2.10\times10^{-34}$ Js
(2) $1.05\times10^{-34}$ JsOfficial answer
(3) $3.15\times10^{-34}$ Js
(4) $4.2\times10^{-34}$ Js

Official answer

Option 2

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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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.