An orbiting satellite can become charged by the photoelectric effect when sunlight ejects electrons from its outer surface. Satellites must be designed to minimize such charging. Suppose a satellite is coated with platinum, a metal with a very large work function (CD = 5.32 eV). Find the longest wavelength of incident sunlight that can eject an electron from the platinum. Number n Units v (a) In MeV/c what is the magnitude of the momentum associated with a photon having an energy equal to the electron rest energy? What are the (b) wavelength and (c) frequency of the corresponding radiation? (a) Number n Units v (b) Number n Units v (c) Number n Units v Under ideal conditions, a visual sensation can occur in the human visual system if light of wavelength 550 nm is absorbed by the eye's retina at a rate as low as 103 photons per second. What is the corresponding rate at which energy is absorbed by the retina? Number i Units