Determine the maximum KE of photoelectrons ejected from a potassium surface by ultraviolet radiation of wavelength 200
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Determine the maximum KE of photoelectrons ejected from a potassium surface by ultraviolet radiation of wavelength 200 nm. What retarding potential difference is required to stop the emission of electrons? The photoelectric threshold wavelength for potassium is 440 nm.
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I have recently received the degree of PhD. In Physics by the Universidade Federal do Maranhão after spending a term in Durham University, as I have been awarded a scholarship from a Brazilian mobility program. During my PhD. I have performed research mainly in Theoretical Physics and published works in distinguished Journals (check my ORCID: https://orcid.org/0000-0002-4324-1184).
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