MCQ
If $i,\,j,\,k$ are the unit vectors and mutually perpendicular, then $[i\,k\,j]$ is equal to
- A$0$
- ✓$-1$
- C$1$
- DNone of these
✓
Answer
Correct option: B.
$-1$
b
(b) $|i\,k\,j|\, = i\,.\,(k \times j) = i\,.\,( - i) = - 1.$
(b) $|i\,k\,j|\, = i\,.\,(k \times j) = i\,.\,( - i) = - 1.$
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