The de Broglie Hypothesis

The de Broglie Hypothesis 

Since light seems to have both wave and particle properties, it is natural to ask whether matter (electrons, protons) might also have both wave and particle characteristics.

In 1924, a French physics student, Louis de Broglie, suggested this idea in his doctoral dissertation. For the wavelength of electron, de Broglie chose: 

h= plank's constant (6.63*10^-34 j.s) 

m = mass 

v= velocity 

E=pc=hv=hc/lambda   

light 

   

two types 1. PARTICLE 2.WAVE 

1. particle 

                                              photoelectric effect             E_k = hf − ϕ

                                               Compton Effect   λ′−λ=hm0c(1−cosθ)

 

2. WAVE 

Interference

Diffraction  

                                                                            polarization

MATTER ( ELECTRON PARTICLE WAVE ) 

DEFINATION 

De Broglie proposed that just as light has both wave like and particle like properties, matter ( specifically electrons ) also have wave like properties .

A wave is associative with  every moving particle , called matter -wave on de-Broglie wave .