Photoelectric effect experiment

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Homework Help Overview

The discussion revolves around an experiment related to the photoelectric effect, where light of varying frequencies is directed at a photodiode to measure current and analyze the relationship between stopping voltage and photon frequency.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • Participants are exploring potential systematic and random errors that could impact experimental results. There are inquiries about the specifics of the experimental setup and the nature of the apparatus to better identify possible errors.

Discussion Status

Some participants have provided initial suggestions and resources for understanding the photoelectric effect, while others are seeking additional ideas for potential errors beyond those already mentioned, indicating an ongoing exploration of the topic.

Contextual Notes

There is a noted need for more detailed information regarding the experimental setup to facilitate a more focused discussion on errors. Participants are also considering the implications of percentage error in their comparison of experimental and actual values of Planck's constant.

chialer96
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What are the possible systematic/random error that can affect my experimental results?
 
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Unless you give us more details on the goal of the experiment and the nature of the apparatus, the only answer you can get is "lots".
 
Photoelectric effect experiment. Light with different frequencies are shone onto a photodiode therefore a current is produced. We apply a stopping voltage to the current to cease the kinetic energy of electrons. Stopping voltage is plotted against frequency of photons. The graph will cut at a y intercept which we knownas work function. Now we compared our experimental value of Planck's constant to the actual one. Obviously we will get a percentage error. Now I need help with the possible errors
 
This may be a good start: http://www.oufusion.org.uk/index.php/component/content/article/1-features/2-einstein-millikan-and-the-photoelectric-effect
 
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Anymore ideass other than calibration driftingor hysteris
 

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