Task 50403.

The "red border" of the photoelectric effect for potassium corresponds to a wavelength of 577 nm. Calculate the minimum quantum energy required to release a photoelectron from a given metal.
Detailed solution with a brief record of the conditions, formulas and laws used in the decision, the conclusion of the calculation formula and the answer.
If you have any questions about the decision, write. I will try to help. File in image format.