Physics

Suppose that at least 14.7 eV is needed to free an electron from a particular element, i.e., to ionize the atom. What is the lowest frequency photon which can accomplish this? And, what is the corresponding wavelength for that photon?

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asked by Niki
  1. h f = 14.7 eV

    lambda = c T = c/f

    c about 3*10^8 m/s

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    posted by Damon
  2. You should be a teacher Damon

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    posted by Jared

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