DETERMINATION_OF_PLANCK-fcorrectly

DETERMINATION_OF_PLANCK-fcorrectly - your variables to get...

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Physics 205L DETERMINATION OF PLANCK’S CONSTANT Name: _______________________________ Section number: ________________ Partner’s Name: _______________________ Instructor: _____________________ Grade: A- Data: Determination of the stopping potential for each color: First Order Color Wavelenght (nm) Frequency (Hz) Stopping Potential (V) Yellow 578 Green 546.074 Blue 435.825 Violet 404.656 Ultraviolet 365.483 Second Order Color Wavelenght (nm) Frequency (Hz) Stopping Potential (V) Yellow 578 Green 546.074 Blue 435.835 Violet 404.656 Ultraviolet 365.483
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B- Analysis : Write down the relationship between the stopping potential and the frequency. Choose
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Unformatted text preview: your variables to get a linear relation, use linear regression to find the slope along with its error both for the first and second order . Find also the y-intercept. Use these results to determine Plancks constant and the work function of the cathode material. 2 C- Questions: Does the maximum energy of the photoelectrons depend on the color of the light? Explain. Does the maximum energy of the photoelectrons depend on the amount of light that falls on the cathode? Explain....
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This note was uploaded on 01/06/2012 for the course PHYS 205L taught by Professor Antar,ghassan during the Spring '11 term at American University of Beirut.

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DETERMINATION_OF_PLANCK-fcorrectly - your variables to get...

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