Here is a sample:https://socratic.org/questions/calculate-the-de-broglie-wavelength-of-an-electron-traveling-at-3-85-106m-s
when you find lambda, change that to frequency , f=speed/lambda
Calculate the frequency of an electron traveling at
1.85 X 10^7 m/s.
Since the velocity and mass of the electron are known, I tried to use the De Broglie wavelength formula:
let L = lambda, h = plancks constant
L = h/mv
and I got 3.94*10^-11 for the wavelength
Since frequency is the inverse of wavelength I did
1 over that answer, but it's wrong.
I can't use E = hv (v being nu, frequency) because that applies only to photons.
What am I missing? What should I do?
1 answer