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Physics, 16.12.2019 19:31 rachelsweeney10

This is an apparatus for studying the photoelectric effect. the work function of the material beinginvestigated is 3.810–19j. light of a wavelength 350 nm is incident on the material. what is the lowestvoltage needed between the cathode (c) and the anode (a) to stop any electrons ejected from the cathodefrom reaching the anode?

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