H2P-607

Energy levels and line spectra

H2 Physics · JC 2 · Medium · Energy levels and line spectra

Light of wavelength

400\,\text{nm}

is incident on a metal surface with work function

\phi = 2.2\,\text{eV}

. What is the maximum kinetic energy of the emitted photoelectrons?
(Take

h = 6.63\times10^{-34}\,\text{J s}

c = 3.00\times10^8\,\text{m s}^{-1}

e = 1.60\times10^{-19}\,\text{C}

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