Calculate the wavelength of a beta particle (electron) that has an energy of 4.35 × 104 eV
E = hf
λ = h/mv
V = W/q
eV = .5mv^2
The Attempt at a Solution
I can't figure out how to get electron volts into a form of energy that I'm familiar with in an equation. I tried
eV = .5mv^2 , but that gave me a speed above the speed of light.
I also tried using E = hf, but that also gave me a ridiculous number.