## Using de Broglie's wavelength to find frequency

$c=\lambda v$

Hannah Lee 2F
Posts: 102
Joined: Thu Jul 11, 2019 12:15 am

### Using de Broglie's wavelength to find frequency

Is it possible to use de Broglie's equation to find frequency, considering we can't use the equations for EM radiation? Do we have to know how to do that for the midterm?

Justin Seok 2A
Posts: 93
Joined: Sat Aug 24, 2019 12:15 am

### Re: Using de Broglie's wavelength to find frequency

I don't believe you can find the frequency directly using de Broglie's, at least not using c=wavelength*frequency. However, it may be an intermediate step in a photoelectric effect problem, where you are given wavelength of an ejected photon, which you use to find the velocity of the photon, and then find total energy and divide by h to find the frequency, or something to that effect.