equations
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sarahtang4B
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equations
How do the equations for E=hv and Ek=1/2mv^2 relate? I know that one is the energy per photon and the other is the kinetic energy but how do they relate to each other?
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Sarah Jeong 4F
- Posts: 30
- Joined: Fri Sep 28, 2018 12:27 am
Re: equations
Hi!
The E=hv, is for the energy of the photon(light) that coming to hit the metal. And Ek=1/2mv^2 is the kinetic energy of the electron that is given out, if the energy of the photon is over the threshold energy.
The kinetic energy=energy of photon-threshold energy.
The E=hv, is for the energy of the photon(light) that coming to hit the metal. And Ek=1/2mv^2 is the kinetic energy of the electron that is given out, if the energy of the photon is over the threshold energy.
The kinetic energy=energy of photon-threshold energy.
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