JEE Mathematics · Medium

Vectors: Cross product MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

Timer-based practiceDetailed answer reviewMobile-friendly flow
Cross productMediumQuestion 260006

Question

If a⃗ = î and b⃗ = ĵ, then a⃗ × b⃗ is:
  1. A
    Correct
  2. B
    −k̂
  3. C
    0
  4. D
    î + ĵ

Correct answer

Explanation

Using the right-hand rule and the cyclic property: î × ĵ = k̂, ĵ × k̂ = î, k̂ × î = ĵ.