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Saturday, 31 October

JEE Main 2021 · PhysicsMultiple choiceDiagram basedMediumData or graph

JEE Main 4 August 2021, Shift 2, Physics Q8

Question 8 of 90 in this shift, Physics question 8 of 30, Section A.

Which of the following curve represents properties similar to CuCl2\mathrm{CuCl_2} (Paramagnetic) ?

The figure, in words

All four options are graphs; see options.
  1. (1)[figure: graph with vertical axis labelled –I and horizontal axis labelled H; a straight line rising from the origin]
  2. (2)[figure: graph with vertical axis labelled 1/x_m and horizontal axis labelled T; a horizontal straight line above the T axis, parallel to it]
  3. (3)[figure: graph with vertical axis labelled 1/x_m and horizontal axis labelled T; a straight line rising from the origin]Official answer
  4. (4)[figure: graph with vertical axis labelled 1/x_m and horizontal axis labelled T; a straight line rising from a point on the T axis marked θ_C, with θ_C labelled near that point]

Official answer

Option 3

NTA final key.

Chapter
Magnetism and Matter
Topic
No close match in our taxonomy
Idea tested
No close match in our taxonomy

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 108 of the 174 JEE Main shifts held from 2017 to 2026.