Stopping potential experiment and presentation.
You will need your readings of stopping potential and wavelength. Calculate the frequency for each wavelength of light that you used. Then plot a graph of stopping potential (y)against frequency (x).
The equation that relates these quantities is
eVs = hf −φ
Rearrange this to find the equation for your straight line graph. What is the gradient of your graph? What should it be? How accurate was your experiment?
Prepare a short 5 min presentation on the workings of one of these microscopes; EITHER an STM or a TEM for next Thursday. Good luck!
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