Physics · Scalars and Vectors

Option A:Free vectors refers to a vector which is neither a point nor a line, and something that can move freely around the space though it has a fixed magnitude and fixed direction.

Option B: Position vector specifies the given direction of a vector.

Option C: A null vector is a vector having magnitude equal to zero. A null vector has no direction or it may have any direction. Generally a null vector is either equal to the resultant of two equal vectors acting in opposite directions or multiple vectors in different directions.

Option D: A unit vector is one whose magnitude is equal to one. The "cap" symbol(^) is used to indicate unit vectors.

A free vector can be moved anywhere in space without changing its properties, but it maintains both magnitude and direction.

A position vector specifies the location of a point in space relative to an origin, not just direction.

A null vector has zero magnitude and is directionless. It cannot specify direction.

A unit vector specifies direction only, with a magnitude of one. It is used to indicate direction in a vector space.