The direction of a null vector:
APoints along the x axis
BPoints along the y axis
CIs always vertical
DCannot be specified
Answer & Solution
Correct answer: D. Cannot be specified
1. Its magnitude is zero.
2. An arrow of zero length points nowhere.
3. So its direction cannot be specified.
_Source: NCERT Class 11 Physics Part I, Chapter 4, Motion in a Plane._
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