Question

is (i^+j^) a unit vector?Explain

Answer 1

no........................ because my teacher told me that the way to check whether the given vector is unit vector or not.......
the method is that you simply have to divide the vector by its magnitude and if that value comes out to be 1 then its unit vector otherwise it's not so I found the magnitude of the given vector
which comes out to be 1 and when divided 1 by the given vector I got answer equal to given vector not equal to 1 so it's not unit vector

Answer 2

no i^+j^ is not a unit vector. As the magnitude of this vector is $\sqrt{2}$

for a vector to be unit its magnitude must be equal to 1.


hope this helps.