Class 12 Vector Algebra · Mcq Single Correct1 Marksorthogonality
Class 12 Maths · Vector Algebra · Mcq Single Correct #18
How many unit vectors are perpendicular to both (2,1,2) and (0,1,1)?
✅ Step-by-Step Solution
Final Answer: Option (B): Two
- The cross product is (−1,−2,2) ≠ 0; its two opposite unit directions are the only possibilities.
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