011-40705070  or  
Call me
Download our Mobile App
Select Board & Class
  • Select Board
  • Select Class

what do you mean by unit vectors?

Asked by Akashataa (student) , on 19/5/12

Become Expert
Score more in Physics
Start Now with Video Lessons, Sample Papers, Revision Notes & more for Class-XI-Science - CBSE 


Unit Vectors:

A vector of unit magnitude is called a unit vector . It has the same direction as that of the given vector .

A unit vector of  is written as and is read as A cap.

= A  Or



 where A = magnitude of .

So, a unit vector in a given direction can also be defined as a vector in that direction divided by the magnitude of the given vector.

It has not unit and dimension. It represents direction only.

Example-  are the unit vectors along x axis , y axis and z axis respectively.

Posted by Jyoti Pant (student) on 20/5/12

This conversation is already closed by Expert

More Answers


See…A unit vector has magnitude 1, with no units. The unit vector is represented by a letter marked with a hat. a unit vector has a magnitude 1, with no units, means that if you multiply a unit vector by a scalar, the resulting vector has a magnitude equal to the value with- units of the scalar.  Hope u understood :)

Posted by Abhiya Dobriyal (student) on 19/5/12

a vector which has magnitude 1

Posted by Avani Goel (student) on 19/5/12

Ask a QuestionHave a doubt? Ask our expert and get quick answers.
Show me more questions