Sunday, December 8, 2013

Photoelectric Effect

Experiment: Photoelectric Effect Course Name/ function: physics 222 Section 012 Date: April 12, 2012 Conclusion The dispose of the eldest order filet electric potentials was 0.3753 which yielded an h set of 6.0048x10-34Js, which was 9.38% off of the recognised h value of 6.6x10-34Js. The second order fillet potentials slope was 0.4255. This yielded an h value of 6.808x10-34Js, which was 2.75% off of the accept h value. in that respect were many sources of error in this experimentation. The percent error is practic every(prenominal)y racyer for the first order lemniscus potential than for the second. This whitethorn be due to the fact that the lamp was non richly alter when the measurements were taken. There was not a gauge anywhere to identify when the lamp was fully heated, so it was more of a guesswork crippled than anything. Another source of error may cook been the ambient light in the lab. This may see entered the demodulator during the experiment, skewing the data.
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This is an experiment that needs to be performed in total darkness, still it was not possible due to the blinds not blocking come to the fore all of the sunlight and the computers being on throughout the experiment. A final examination cause of error may have been the yellow and potassium filters2. They have been inadequate, insufficiently blocking superior frequency light. These uninvited high energy photons would have ejected high energy electrons, allowing them to sink the cathode-anode potential, which would have increased the measured stopping potential.If you want to take a full essay, order it on our website: OrderCustomPaper.com

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