Threshold Energy

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Threshold Energy

Postby paytonm1H » Sun Oct 14, 2018 11:54 pm

Hi all!
Each unique metal surface has its own threshold energy needed to remove an electron... if this threshold isn't met, is the energy of the incoming photon absorbed by the surface? I'm just curious to know where this energy goes (thinking about the conservation of energy).

Elias Omar 1G
Posts: 52
Joined: Fri Sep 28, 2018 12:17 am

Re: Threshold Energy

Postby Elias Omar 1G » Sun Oct 14, 2018 11:56 pm

In a way yes. the photons that don't have enough energy to remove an electron end up heating up the surface of the metal.

Sara Flynn 2C
Posts: 60
Joined: Fri Sep 28, 2018 12:23 am

Re: Threshold Energy

Postby Sara Flynn 2C » Mon Oct 15, 2018 8:24 pm

If the threshold energy is not met then the incoming photon passes through the surface because it is unable to interact with the electrons of that metal since they are only able to absorb energy in discrete amounts

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