When a certain metal is illuminated by light, photoelectrons are observed, provided that the wavelength of the light is less than 669 nm. Which one of the following values is closest to the work function of this metal?
When a certain metal is illuminated by light, photoelectrons are observed, provided that the wavelength of the light is less than 669 nm. Which one of the following values is closest to the work function of this metal?
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Transcribed Image Text:When a certain metal is illuminated by light, photoelectrons are observed, provided that the
wavelength of the light is less than 669 nm. Which one of the following values is closest to the work
function of this metal?
O 2.2 eV
2.0 eV
1.9 eV
2.3 eV
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