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.
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.
Modern Physics
3rd Edition
ISBN:9781111794378
Author:Raymond A. Serway, Clement J. Moses, Curt A. Moyer
Publisher:Raymond A. Serway, Clement J. Moses, Curt A. Moyer
Chapter3: The Quantum Theroy Of Light
Section: Chapter Questions
Problem 18P
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