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Information about this web site => Request for physics Simulations => Topic started by: lookang on July 14, 2009, 10:31:31 am



Title: Photoelectric Effect Java Applet modeling e*Vs = h*f - W
Post by: lookang on July 14, 2009, 10:31:31 am
reference
http://www.walter-fendt.de/ph14e/photoeffect.htm


To model this equation.

Ekin   =   h f   –   W

Ekin ... maximal kinetic energy of an emitted electron
h ..... Planck constant (6.626 x 10-34 Js)
f ..... frequency
W ..... work function.

I am exploring whether this is a good applet to port over to Ejs format. I used to use this in 2006 and it worked fine, strangely now it is not plotting the lines.

i used to be able to vary the 5 options of light wavelength and it will plot the points automatically and when all points are plotted, it will draw a line to show

e*Vs =  h*f - W

it used to show the line but strangely it doesn't run properly now.(http://www.phy.ntnu.edu.tw/ntnujava/index.php?action=dlattach;topic=1166.0;attach=1187;image)

i don't think i can make this one myself, so i have to request for this :)

By the way,
http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=342.0
is a I vs V graph, i wonder can it be remix for e*Vs =  h*f - W ?


Title: Re: Photoelectric Effect Java Applet modeling e*Vs = h*f - W
Post by: Fu-Kwun Hwang on July 14, 2009, 10:56:43 am
Please check out Photoelectric effect (http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=342.0)
It is designed to be similar to a real experiment.
User need to repeat the operation several time with different work function and extract data from the simulation
 to get e*Vs = h*f - W relation.


Title: Re: Photoelectric Effect Java Applet modeling e*Vs = h*f - W
Post by: lookang on July 14, 2009, 11:13:31 am
ok i try to remix this one into e*Vs = h*f - W :)