Kinetic Energy of Emitted Electron

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Max Hayama 4K
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Joined: Fri Sep 28, 2018 12:16 am

Kinetic Energy of Emitted Electron

Postby Max Hayama 4K » Tue Oct 09, 2018 12:04 am

It was mentioned in lecture that if the energy of the incoming light is equal to the amount of energy needed to remove an electron from a metal's surface, then the kinetic energy of the removed electron would equal 0. This means that the electron would only move(be detected) due to the charge difference created by the circuit with the detector. Wouldn't this mean that the electron has a velocity, and therefore isn't 0?

Saman Andalib 1H
Posts: 73
Joined: Fri Sep 28, 2018 12:16 am

Re: Kinetic Energy of Emitted Electron

Postby Saman Andalib 1H » Tue Oct 09, 2018 1:49 am

As Lavelle stated in the lecture, the experimental design in the experiment included calculations which discounted the velocity which is obtained from the opposite charges attracting the electron to the detector.


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