If sodium has a work function of 3.78x10-19 J, can light of wavelength 490 nm eject electrons from sodium?

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answerhappygod
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If sodium has a work function of 3.78x10-19 J, can light of wavelength 490 nm eject electrons from sodium?

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If sodium has a work function of 3.78x10-19 J,
can light of wavelength 490 nm eject electrons from sodium?
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