The light traveling in any one direction in a straight line is called a ray of light. A group of light rays given out from a source is called a beam of light.
Divergent beam of light
Light rays from a point source of light travel in all directions, moving away with time. Such a beam of light is called a divergent beam of light.
The divergent beam does not meet at a point.
In a Divergent beam, the rays spread and follow different paths.
For instance, rays coming out from a glowing bulb or a candle or a car headlight form a divergent beam.
Convergent beam of light
A convergent beam of light rays comes together (converges) after reflection and refraction at a single point known as the focus.
A convergent beam meets at a point.
In a Convergent beam, rays do not spread and follow the same path.
For instance, the rays received by video or still camera converge on the film.
