Problem 40436.
Ultraviolet radiation, the wavelength of which is 2.3 * 10^-7 m, falls on the substance and causes a photoelectric effect. When another substance is irradiated, the retarding potential difference remains the same as for the first substance, if the radiation frequency is increased by 2*10^14 Hz. The will lengths corresponding to the red boundaries of these substances differ by a factor of 1.25. Find the maximum energy and velocity of photoelectrons knocked out of the first substance.
A detailed solution with a brief note of the condition, formulas and laws used in the solution, the derivation of the calculation formula and the answer.
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