Задача id9732

The maximum kinetic energy of electrons emitted from rubidium when irradiated with ultraviolet light with a wavelength L = 3.17 • 10-7 m, Ekmax = 2.84 • 10-19 J. Determine the electron work function and the red limit of the photoelectric effect for rubidium. Planck's constant h = 6.63 • 10-34 J • s, the speed of light in vacuum c = 3 • 108 m/s.

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