Instructions
Enter Voltage (in kv) to calculate the wavelength

De-Broglie equation

The De-Broglie Wavelength (λ) of electron is given as:
λ=h/mv
(1) Where h is the Plank’s constant, m and v are the mass and velocity, respectively, of the electron.
or
or λ=(1.225 )/√V (nm)
where V is accelerating voltage

Result

Wavelength (in nm)

Enter the Accelerating Voltage to find the wavelength
Accelerating Voltage (in KV):



Velocity of Electrons:
Newtonian:

 Einsteinian:

 Difference:

 Unit:
m/sec

%
Mass of Electrons:



kg

EU
Energy of Electrons:
N*m
Momentum of Electrons:
N*sec