JEE Main 1 February 2024, Shift 1, Physics Q47

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

The minimum energy required by a hydrogen atom in ground state to emit radiation in Balmer series is nearly :

(1)13.6 eV
(2)1.5 eV
(3)12.1 eVOfficial answer
(4)1.9 eV

Official answer

Option 3

NTA final key.

Chapter: Atoms
Topic: Bohr's Atomic Model
Idea tested: Excitation and Ionization Potentials

Same idea in other shifts

Asked 2× in all

6 Apr 2024, Shift 2 · Q55In Franck-Hertz experiment, the first dip in the current-voltage graph for hydrogen is observed at 10.2 V. The wavelength of light emitted…EasyNumerical 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.