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Tungsten has a work function of 4.6 eV What is the longest wavelength of light that will release an electron from a tungsten surface? Express

Tungsten has a work function of 4.6 eV What is the longest wavelength of light that will release an electron from a tungsten surface? Express your answer with the appropriate units.A 5.3 eV photon strikes the surface of tungsten and an electron is emitted. What is the maximum possible speed of the electron? Express your answer with the appropriate units

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