Let $p, q$ and $r$ be vectors such that $r \neq 0$,$p \times q = r$,and $q \times p = r$. Then which of the following is true?
$(i)$ $p, q, r$ are pair-wise orthogonal vectors
(ii) $|q| = |r| = |p|$

  • A
    $(i)$ is correct,(ii) is incorrect
  • B
    $(i)$ is incorrect,(ii) is correct
  • C
    Both $(i)$ and (ii) are incorrect
  • D
    Both $(i)$ and (ii) are correct

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