work function clarification

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Alexandra Bartolome 2H
Posts: 82
Joined: Sat Jul 20, 2019 12:17 am

work function clarification

Postby Alexandra Bartolome 2H » Sat Oct 12, 2019 4:49 pm

Just to clarify, the work function of a metal is the same as the threshold energy, the minimum amount of energy required to eject electrons from a metal surface?

chemboi
Posts: 83
Joined: Sat Jul 20, 2019 12:16 am

Re: work function clarification

Postby chemboi » Sat Oct 12, 2019 4:51 pm

Yes!

Maeve Miller 1A
Posts: 51
Joined: Fri Aug 09, 2019 12:16 am

Re: work function clarification

Postby Maeve Miller 1A » Sat Oct 12, 2019 8:44 pm

Yes, a work function can also be termed threshold energy, which represents the energy used to remove an e- from a metal surface :)

Alex Chen 2L
Posts: 71
Joined: Wed Sep 18, 2019 12:21 am

Re: work function clarification

Postby Alex Chen 2L » Sat Oct 12, 2019 8:45 pm

That's correct. The work function describes the threshold of energy required of photons hitting the metal to eject an electron, since each photon interacts with a single electron.

Nare Arakelian Dis 3E
Posts: 58
Joined: Thu Jul 11, 2019 12:16 am

Re: work function clarification

Postby Nare Arakelian Dis 3E » Sat Oct 12, 2019 8:49 pm

Are they only the same when the kinetic energy is zero? Or does this not matter


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