3.2. A photon of wavelength 350 nm and intensity 1.00 W/m² is directed at a potassium surface, with work function 2.2 eV. (a) Calculate the maximum kinetic energy of the emitted photoelectrons. (b) If 5% of the incident photons produce photoelectrons, how many are emitted per sec if the potassium surface has an area of 1 cm²? (c) Calculate the photoelectric current generated.

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3.2. A photon of wavelength 350 nm and intensity 1.00 W/m² is directed at a potassium surface,
with work function 2.2 eV.
(a) Calculate the maximum kinetic energy of the emitted photoelectrons.
(b) If 5% of the incident photons produce photoelectrons, how many are emitted per sec if
the potassium surface has an area of 1 cm²?
(c) Calculate the photoelectric current generated.
Transcribed Image Text:3.2. A photon of wavelength 350 nm and intensity 1.00 W/m² is directed at a potassium surface, with work function 2.2 eV. (a) Calculate the maximum kinetic energy of the emitted photoelectrons. (b) If 5% of the incident photons produce photoelectrons, how many are emitted per sec if the potassium surface has an area of 1 cm²? (c) Calculate the photoelectric current generated.
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