On 30 Sep 1999 10:29:58 -0400, Nieminen Juha <war### [at] cctutfi> wrote:

>  If the photon is absorbed by a molecule, why does the photon leave the
>molecule in the exact same direction as it entered it?

My father tried to explain this to me a lot of times and never
understood it. I only know that this phenomenon is the reason that a
laser beam is virtually non-divergent.


Peter Popov
ICQ: 15002700

Post a reply to this message