# If is a unit vector in the direction of the vector , then Option 1) Option 2) Option 3) Option 4) None of the above

As learnt in

Important points or Tips for vectors -

1-(Vector Multiplication)

If a vector is multiplied by any scalar (n=1,2,3..) We get again a vector.

Vector Scalar Vector

2-If a vector is multiplied by any real number (eg 2 or -2)  then again, we get a vector quantity.

- wherein

If is multiplied by 2 then direction of resultant vector is same as that of given vector.

E.g.

If is multiplied by by (-2), then direction of resultant is opposite to that of given vector.

If  is a unit vector, it's magnitude is equal to

Option 1)

This option is correct

Option 2)

This option is incorrect

Option 3)

This option is incorrect

Option 4)

None of the above

This option is incorrect

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