Задача 50228.

For potassium photoelectric threshold 564 nanometers. Determine: A work function for potassium (in electron volts); the kinetic energy of the emitted electrons at the drop of potassium photocathode monochromatic radiation with a wavelength of 400 nm.

Detailed solution shorthand terms, formulas, laws used in the decision, the withdrawal of the calculation formula and the response.
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