can you also explain the difference between convergent beam , divergent beam , parallel beam and a ray
Convergent beam:
When the light rays are focussed at a point, then the collection of such rays is called convergent beam.
Divergent beam:
When the rays of light starting from a point travel in different directions, then the collection of such rays is called divergent beam.
Parallel beam:
A collection of rays which are parallel to each other is called parallel beam.
Ray:
A ray is just a single ray of light and is shown by an arrow.
When the light rays are focussed at a point, then the collection of such rays is called convergent beam.
Divergent beam:
When the rays of light starting from a point travel in different directions, then the collection of such rays is called divergent beam.
Parallel beam:
A collection of rays which are parallel to each other is called parallel beam.
Ray:
A ray is just a single ray of light and is shown by an arrow.