In the cube of side $a$ shown in the figure, the vector from the central point of the face $ABOD$ to the central point of the face $BEFO$ will be

820-725

  • [JEE MAIN 2019]
  • A

    $\frac{1}{2}\,a\,\left( {\hat k - \hat i} \right)$

  • B

    $\frac{1}{2}\,a\,\left( {\hat i - \hat k} \right)$

  • C

    $\frac{1}{2}\,a\,\left( {\hat j - \hat i} \right)$

  • D

    $\frac{1}{2}\,a\,\left( {\hat j - \hat k} \right)$

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