The equation \( \lambda = \dfrac{1.227}{x} \, \text{nm} \) can be used to find the de-Brogli wavelength of an electron. In this equation \( x \) stands for
Where \( m = \) mass of electron
\( P = \) momentum of electron
\( K = \) Kinetic energy of electron
\( V = \) Accelerating potential in volts for electron
