Question

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.

Answer 1

Answer:

the answer is in the above picture

Explanation:

the explanation is given in the above picture

(sry for the bad quality )