Online College Courses for Credit

Comptoneffekt, parbildning och annihilation (Impuls2 s.258-263)

Comptoneffekt, parbildning och annihilation (Impuls2 s.258-263)

Author: Håkan Nygård
See More
Fast, Free College Credit

Developing Effective Teams

Let's Ride
*No strings attached. This college course is 100% free and is worth 1 semester credit.

29 Sophia partners guarantee credit transfer.

314 Institutions have accepted or given pre-approval for credit transfer.

* The American Council on Education's College Credit Recommendation Service (ACE Credit®) has evaluated and recommended college credit for 27 of Sophia’s online courses. Many different colleges and universities consider ACE CREDIT recommendations in determining the applicability to their course and degree programs.


Hur kan ljus/fotoner absorberas i materia?

Om du belyser materia med ljus/fotoner kan dessa fotoner växelverka med materian på olika sätt.

1) Fotonen kan avge hela sin energi till materian och "knuffa" loss en elektron. Fenomenet kallas fotoelektrisk effekt.

2)  Fotonen kan avge delar av sin energi till en elektron. Fenomenet kallas comptoneffekt.

3) Fotonen kan avge hela sin energi och av energin bildas nya partiklar. Fenomenet kallas parbildning.



Absorption av fotoner