The best way to describe a ray.
Ray
A ray is known as a half-infinity line. As it starts from a point while the other end is pointing towards the direction till infinity.
As already discussed ray shows a direction as well, therefore, it is a vector quantity and is denoted by an arrow over the line name.
As shown below a ray can be drawn. therefore, [tex]\bold{\underset{AB}{\rightarrow}}[/tex] which is starting from point A and continuing toward the right side infinity.
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