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When a certain metal is illuminated by light, photoelectrons are observed provided that the wavelength of the light is less than 449 nm. Which one

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When a certain metal is illuminated by light, photoelectrons are observed provided that the wavelength of the light is less than 449 nm. Which one of the following values is closest to the work function of this metal? (h = 6.626 * 10-34 J - s, c = 3.00 * 10 m/s, 1 eV = 1.60 * 10-19 J) O 3.0 eV O 3.4 eV O 2.8 eV O 3.2 eV Submit Request

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