2) Consider the photoelectric effect in zinc. The work function of the Zn is 4.30 eV. After the surface of the specimen is illuminated by light photoelectrons may or may not be emitted. a) What is the largest wavelength that will cause emission of photoelectrons? b) If light of wavelength 220 nm is used, what is the stopping potential?
2) Consider the photoelectric effect in zinc. The work function of the Zn is 4.30 eV. After the surface of the specimen is illuminated by light photoelectrons may or may not be emitted. a) What is the largest wavelength that will cause emission of photoelectrons? b) If light of wavelength 220 nm is used, what is the stopping potential?
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Transcribed Image Text:2) Consider the photoelectric effect in zinc. The work function of the Zn is 4.30 eV. After
the surface of the specimen is illuminated by light photoelectrons may or may not be
emitted.
a) What is the largest wavelength that will cause emission of photoelectrons?
b) If light of wavelength 220 nm is used, what is the stopping potential?
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