deriving DeBroglie


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CaminaB_1D
Posts: 63
Joined: Fri Sep 28, 2018 12:16 am

deriving DeBroglie

Postby CaminaB_1D » Tue Oct 23, 2018 10:29 pm

Can someone show me how to derive the DeBroglie equation? I am looking back in my notes and I must have written something down wrong because it is not making sense

Ray Guo 4C
Posts: 90
Joined: Fri Sep 28, 2018 12:15 am

Re: deriving DeBroglie

Postby Ray Guo 4C » Tue Oct 23, 2018 10:37 pm

• for a photon: E=pc, E=hv
• ∴pc=hc/λ → λ=hp

tierra parker 1J
Posts: 61
Joined: Fri Sep 28, 2018 12:17 am

Re: deriving DeBroglie

Postby tierra parker 1J » Tue Oct 23, 2018 10:53 pm

c = λv (v is frequency)
p = mv
E = pv (v is velocity)
for a photon the speed is the speed of light so E=pc and E=(hc)/ λ
so pc=(hc)/ λ
λpc=hc
λ = h/p (de Broglie)


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