What is a unit vector?

1.	What is a unit vector?
Answer» Vector have both direction and magnitude. And the magnitude is 1<br>A unit vector is a vector of unit magnitude and a particular direction.\tThey specify only direction. They do not have any dimension and unit.\tIn a rectangular coordinate system, the x, y and z axes are represented by unit vectors, î,ĵ andk̂\tThese unit vectors are perpendicular to each other.\t\|î\| = \|ĵ \| = \|k̂\| = 1<br>Vector whose magnitude is 1

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