Q247 / 270 · NDA 2012 (Phase 2) · Mathematics

The vector $2 \hat{j}-\hat{k}$ lies:

  • A
    in the plane of XY
  • Correct answer
    B
    in the plane of YZ
  • C
    in the plane of $X Z$
  • D
    along the X -axis

Solution

Given vector is $2 \hat{j}-\hat{k}$ hence, it lies in YZ plane only.

Hence, the correct answer is option: 'B'.

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