When ultraviolet light with a wavelength of 254 run falls on a clean copper surface, the stopping

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When ultraviolet light with a wavelength of 254 run falls on a clean copper surface, the stopping potential necessary to stop emission of photoelectrons is 0.181 V.
(a) What is the photoelectric threshold wavelength for this copper surface?
(b) What is the work function for this surface, and how does your calculated value compare with that given in Table 38.1?
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General Chemistry

ISBN: 978-1439043998

9th edition

Authors: Darrell Ebbing, Steven D. Gammon

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