The formula for finding the wavelength of an electron with a kinetic energy of 2.00 eV is λ = h / √(2mE), where λ is the wavelength, h is Planck's constant, m is the mass of the electron, and E is the kinetic energy.
To convert from eV to joules, multiply the value in eV by 1.602 x 10^-19 Joules/eV.
Planck's constant, denoted by the symbol h, has a value of 6.626 x 10^-34 joule seconds.
The mass of an electron is 9.109 x 10^-31 kilograms.
No, the wavelength of an electron with a kinetic energy of 2.00 eV will vary depending on the mass and speed of the electron.