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NDA 2011
Exam
NDA
Year
2011
Subject
Mathematics
Chapter
Vector Algebra

NDA 2011 · Mathematics · Vector Algebra

Which one of the following is the unit vector perpendicular to the...

Which one of the following is the unit vector perpendicular to the vector 4i^+2j^4 \hat{i}+2 \hat{j} and −3i^+2j^-3 \hat{i}+2 \hat{j} ?

Options

  1. Ai^+j^2\frac{\hat{i}+\hat{j}}{\sqrt{2}}
  2. Bi^−j^2\frac{\hat{i}-\hat{j}}{\sqrt{2}}
  3. Ck^\hat{k}
  4. Di^+j^+k^3\frac{\hat{i}+\hat{j}+\hat{k}}{\sqrt{3}}

Correct answer

C. k^\hat{k}

Step-by-step solution

The correct answer is option (C).
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