De Broglie wavelength

Now we know that a particle can also, in cases, be represented as a wave, that means we can find the wavelength of a particle!

There’s isn’t a proven way of calculating it, but de Broglie theorised that:

\lambda=\frac h{mv}

• \lambda is the wavelength of the particle
• h is the planck constant, 6.63\times10^{-34}\,Js
• mv is the momentum of the particle:
  • m is its mass
  • v is its velocity
  • we multiply them together to get momentum.