Basics Flashcards
1
Q
Basic function of plane waves Ψ(x,t)
A
Ψ(x,t) = Aexp( i(kx-ωt) )
2
Q
Wavelength to wave number relation
A
k = 2π/λ
3
Q
DeBroglie relation
A
λ = h/p
4
Q
Momentum to wave number relation
A
k = (1/ħ) p
5
Q
Reduced planck
A
ħ = h/2π
6
Q
Planck law (photon energy)
A
E = hν (v is frequency)
7
Q
Angular frequency from freq.
A
ω = 2πν
8
Q
Non-relativistic kinetic energy from momentum
A
p²/2m = E
9
Q
Non-relativistic kinetic energy from momentum in terms of planck
A
(ħ² k²) / 2m = ħω
10
Q
Uncertainty principle
A
ΔxΔp ≥ ħ/2
