A metallic surface bambambed
with a light radiation whose frequency is
300 sec-1 and work
function of the metal is 3x10 ²J
Can the election eject or not-
yes, what is ke of ejected electron
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Explanation:
Work function of a metal is defined as the minimum energy required to eject out electron from metal surface . When a photon of energy 3.4eV is incident on a metal , 2eV energy will be used in ejecting an electron , because the work function of metal is 2eV . And the remaining energy 3.4−2=1.4eV , will be used by ejected electron as maximum kinetic energy .
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