Determine the Planck constant h if it is known that

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Determine the Planck constant h if it is known that photoelectrons pulled out from the surface of a metal by light with a frequency of 2.2 * 10 ^ 15 1 / s are completely delayed by an inverse potential of 6.6 V, and the red border of the photoelectric effect for this metal is 6 * 10 ^ -7 m.

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Task 00063. 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.

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