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Friday, 9 October

JEE Main 2022 · PhysicsMultiple choiceSingle correctEasyCalculation

JEE Main 29 June 2022, Shift 1, Physics Q43

Question 43 of 90 in this shift, Physics question 13 of 30, Section A.

Two vectors A⃗\vec{A} and B⃗\vec{B} have equal magnitudes. If magnitude of A⃗+B⃗\vec{A} + \vec{B} is equal to two times the magnitude of A⃗−B⃗\vec{A} - \vec{B}, then the angle between A⃗\vec{A} and B⃗\vec{B} will be :
  1. (1)sin⁡−1(35)\sin^{-1}\left(\frac{3}{5}\right)
  2. (2)sin⁡−1(13)\sin^{-1}\left(\frac{1}{3}\right)
  3. (3)cos⁡−1(35)\cos^{-1}\left(\frac{3}{5}\right)Official answer
  4. (4)cos⁡−1(13)\cos^{-1}\left(\frac{1}{3}\right)

Official answer

Option 3

NTA final key (2022 Session 1).

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