A vector of magnitude one is called a:
AUnit vector
BZero vector
CFree vector
DNull vector
Answer & Solution
Correct answer: A. Unit vector
1. Some vectors are used only to show direction.
2. Their length is fixed at unity.
3. Such a vector is a unit vector.
4. So the answer is a unit vector.
_Source: NCERT Class 12 Mathematics, Ch 10 'Vector Algebra'_
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