Photon–Particle Collisions lesson illustration

 

What color of light has the highest frequency? (Use you reference table if you don't know)

 

 

showmethephysics.com

Google Slideshow

 

 

C) Photon, particle Collision

 

 

'Compton Effect'

(2nd proof of photon theory)

 

- Light acts like particles
in collisions with free electrons.

School Blocks YouTube? Use the file below.

x_ray_compton_scattering.avi

Photon–Particle Collisions lesson illustration

Penn State

 

 

 
High frequency source (like X-Rays)

Photon–Particle Collisions lesson illustration

 

 

 

Photon transferred
energy & momentum
 to electron

 

 


Photon's

energy  & momentum
decrease
 
=

Electron's
 energy & momentum
 
increase.

 

 

Momentum photon

= p = h/λ

 

Which color of light has the
greatest momentum?

Photon–Particle Collisions lesson illustration

 

 

Violet

Highest f,  Smallest λ

 

 

 

 

**Mass, energy, momentum
are conserved. 

 

madam curie