If is a vector of magnitude 21 and has direction ratios 2,-3,6, then value of is
Two vectors and are equal if
their magnitudes are equal
they originate from the same point
their direction is same
their magnitude as well as direction is same
A, B, C, D, E, F in that order are the vertices of a regular hexagon with centre origin. If the position vectors of the vertices A and B are respectively, , then is equal to
A vector whose magnitude is of unit length is called
zero vector
unit vector
position vector
collinear vector
If position vectors of A and B are , then magnitude of is
32
24
20
14
Two vectors when act along the same line or along parallel lines are called
Collinear vectors
Coplanar vectors
Equal vectors
Position vectors
Direction of zero vector
does not exist
is towards origin
is indeterminate
None of these
The position vectors of P and Q are respectively and . If R is a point on such that , then the position vector of R is
5 - 4
5 + 4
4 - 5
4 - 5c
If m1, m2, m3, and m4 are respectively the magnitudes of the vectors , then the correct order of m1, m2, m3, and m4 is
m3 < m1 < m4 < m2
m3 < m1 < m2 < m4
m3 < m4 < m1 < m2
m3 < m4 < m2 < m1
If , then the magnitude of ( + ) is
13
-13
3
4
