Mathematics · Vector Algebra
Let a = i + j - 2k, b = i + 2j - 3k, and c = 2i - j + k be three vectors. If r is a vector such that r · a = 0, r · c = 3, and [r a b] = 0, then the value of |r| is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
Share:
- 17
- 23
- 3√3
- 4√2✓
Correct answer
√2
Download Single Question PDF
Save this question and verified answer as a clean study sheet with live clickable link.
👥
Share with Friends & Study Groups
Challenge your peer aspirants on WhatsApp or Telegram to solve this question!
Online Test Series
Start Free Mock Test →Preparing for Mathematics?
Practice full-length mock tests with real exam timers, instant score analysis, and all-India ranking.
Chapter Practice
Practice Vector Algebra MCQs →Want more practice questions on Vector Algebra?
Solve complete topic-wise tests with detailed solutions on GkGet.
Related Practice Questions
Recommended practice questions in Mathematics · Vector Algebra