If and
are two non-collinear vector then, the number of unit vectors orthogonal to both
and
is
0
1
2
3
As we learn
Orthogonal system of Unit Vectors -
- wherein
and
as non-collinear , so they will lie in a plane (partucular), so orthogonal vector to them will be orthogonal on plane as well,so it can be in two directions just opposite to each and perpendicular to plane. Hence two unit vectors.
option C
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