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Friday, 9 October

JEE Main 2022 · PhysicsMultiple choiceSingle correctEasyCalculation

JEE Main 29 June 2022, Shift 1, Physics Q45

Question 45 of 90 in this shift, Physics question 15 of 30, Section A.

At a certain place the angle of dip is 30∘30^\circ and the horizontal component of earth's magnetic field is 0.5 G. The earth's total magnetic field (in G), at that certain place, is :
  1. (1)13\frac{1}{\sqrt{3}}Official answer
  2. (2)12\frac{1}{2}
  3. (3)3\sqrt{3}
  4. (4)1

Official answer

Option 1

NTA final key (2022 Session 1).

Chapter
Magnetism and Matter
Topic
Earth's Magnetism
Idea tested
Field Vector Components

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