de Broglie wavelength
Matter waves are referred to as de Broglie waves. A particle's de Broglie wavelength is defined as Planck's constant divided by the particle's momentum, p = h/p. The de Broglie wavelength is named after Louis de Broglie.
\[de\: Broglie\: wavelength = \frac{Planck's \: constant}{momentum}= \frac{Plank's\: constant}{(mass)(velocity)} \]
\[\lambda =\frac{h}{p}=\frac{h}{mv} \]
λ = the de Broglie wavelength (m)
h = Planck's constant (\[6.63\times 10^{-34}J.s \])
p = momentum of a particle (\[kg.m/s \])
m = mass of a particle (kg)
v = velocity of a particle (m/s)
