# A Vector is Not Changed If - Physics

MCQ

A vector is not changed if

#### Options

• it is rotated through an arbitrary angle

• it is multiplied by an arbitrary scalar

•  it is cross multiplied by a unit vector

• it is slid parallel to itself.

#### Solution

it is slid parallel to itself.

A vector is defined by its magnitude and direction. If we slide it to a parallel position to itself, then none of the given parameters, which define the vector, will change.
Let the magnitude of a displacement vector ( $\vec{A}$ )  directed towards the north be 5 metres. If we slide it parallel to itself, then the direction and magnitude will not change.

Is there an error in this question or solution?

#### APPEARS IN

HC Verma Class 11, 12 Concepts of Physics 1
Chapter 2 Physics and Mathematics
MCQ | Q 1 | Page 28