Every metal has a definite work function. Why do all photoelectrons not come out with same Energy. If incident radiation is monochromatic ? Why is there an energy distribution of photo electrons?
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A minimum energy is required for the electron in the highest level of conduction band to get out of the the metal .
But all the electron do not belong to that level, but they occupy a continuous band of levels .
Hence for a given incident radiation , electron knocked off from different levels come out with different energies
A minimum energy is required for the electron in the highest level of conduction band to get out of the the metal .
But all the electron do not belong to that level, but they occupy a continuous band of levels .
Hence for a given incident radiation , electron knocked off from different levels come out with different energies
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