Question
The equation $\lambda=\frac{1.227}{x} \mathrm{~nm}$ can be used to find the de-Brogli wavelength of an electron. In this equation $x$ stands for :
Where
$\mathrm{m}=$ mass of electron
$\mathrm{P}=$ momentum of electron
$\mathrm{K}=$ Kinetic energy of electron
$\mathrm{V}=$ Accelerating potential in volts for electron