## electron ejection

$c=\lambda v$

Joanna Mendoza 3J
Posts: 20
Joined: Sat Aug 24, 2019 12:17 am

### electron ejection

Can someone explain to me the kind of wavelengths that can and can’t eject electrons and why this is so?

Elena Bell 1C
Posts: 64
Joined: Thu Jul 11, 2019 12:16 am

### Re: electron ejection

Light with long wavelengths cannot eject electrons because longer wavelengths=lower frequency and less energy. Light with short wavelengths can eject electrons because shorter wavelengths=higher frequency and more energy. The electrons need higher energy in order to be ejected.