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Saturday, 31 October

JEE Main 2021 · PhysicsMultiple choiceSingle correctEasyRecall

JEE Main 24 February 2021, Shift 2, Physics Q12

Question 12 of 90 in this shift, Physics question 12 of 30, Section A.

A soft ferromagnetic material is placed in an external magnetic field. The magnetic domains :
  1. (1)increase in size but no change in orientation.
  2. (2)decrease in size and changes orientation.
  3. (3)may increase or decrease in size and change its orientation.Official answer
  4. (4)have no relation with external magnetic field.

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