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Friday, 9 October

JEE Main 2023 · ChemistryMultiple choiceDiagram basedEasyData or graph

JEE Main 8 April 2023, Shift 2, Chemistry Q64

Question 64 of 90 in this shift, Chemistry question 4 of 30, Section A.

Henry Moseley studied characteristic X-ray spectra of elements. The graph which represents his observation correctly is Given ν\nu = frequency of X-ray emitted ZZ = atomic number

The figure, in words

Four graphs, each a straight line through the origin, with axes as given in the options
  1. (1)[figure: graph of ν\sqrt{\nu} (y-axis) vs ZZ (x-axis), straight line through origin]Official answer
  2. (2)[figure: graph of Z\sqrt{Z} (y-axis) vs ν\nu (x-axis), straight line through origin]
  3. (3)[figure: graph of ν\nu (y-axis) vs ZZ (x-axis), straight line through origin]
  4. (4)[figure: graph of ν2\nu^2 (y-axis) vs ZZ (x-axis), straight line through origin]

Official answer

Option 1

NTA final key.

Chapter
Structure of Atom
Topic
X-Ray Production
Idea tested
Moseley's Law Graph Analysis

Same topic in other shifts

All X-Ray Production questions
  1. 2 Apr 2017 (offline) · Q21An electron beam is accelerated by a potential difference V to hit a metallic target to produce X-rays. It produces continuous as well as…MediumSingle correctHas a figure

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. This question needs a figure we do not reproduce; it is described in words above. Lumi analyses 42 of the 174 JEE Main shifts held from 2017 to 2026.