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The work function for lithium is 2.3 ev. a. What is the threshold wavelength of light for the emission of electrons? b. With what

 

The work function for lithium is 2.3 ev. a. What is the threshold wavelength of light for the emission of electrons? b. With what maximum kinetic energy will electrons be ejected from a lithium surface exposed to the purple mercury line (436 nm)?

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