electron ejection

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

electron ejection

Postby Joanna Mendoza 3J » Sun Oct 13, 2019 7:48 pm

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

Postby Elena Bell 1C » Sun Oct 13, 2019 7:53 pm

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.

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