Sunlight, whose visible wavelengths range from 380 nm to 750 nm, is incident on a sodium
surface. The work function for sodium is Wo = 2.28 eV. (a) Find the maximum kinetic energy
KEmax (in J) of the photoelectrons emitted from the surface and (b) the range of wavelengths that
will cause photoelectrons to be emitted.
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the answer is in the above picture
Explanation:
the explanation is given in the above picture
(sry for the bad quality )
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