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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

Penn State

 

 

 
High frequency source (like X-Rays)

 

 

 

Photon transferred
energy & momentum
 to electron


 

Photon Particle Collisions
The Physics Zone

 

 


Photon's

energy  & momentum
decrease
 
=

Electron's
 energy & momentum
 
increase.

 

 

 

 


Momentum photon

= p = h/λ


 

Which color of light has the
greatest momentum?

 

 

Violet

Highest f,  Smallest λ

 

 

 

 

**Mass, energy, momentum
are conserved. 

 

 

 

Matter Waves

 

 

 

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