The photoelectric work function of potassium is 2.1 eV. If light that has a wavelength of 180 nm falls on potassium
Part A: Find the stopping potential for light of this wavelength (V = ______ units)
Part B: Find the kinetic energy, in electron volts, of the most energetic electrons ejected (K = ______ eV)
Part C: Find the speeds of these electrons (vmax = ______ units)
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