Class 12PhysicsDual Nature of Radiation and matterPhotoelectric Effect by Lenard and it's Observations
MediumDefine the work function of a metal and write its unit.
(N/A) The work function of a metal is defined as the minimum amount of energy required by an electron to just escape from the metal surface.
It is a characteristic property of the metal and depends on the nature of the metal and its surface conditions.
The $SI$ unit of work function is the Joule $(J)$,but in atomic and nuclear physics,it is commonly expressed in electron-volt $(eV)$,where $1 \ eV = 1.602 \times 10^{-19} \ J$.
It is a characteristic property of the metal and depends on the nature of the metal and its surface conditions.
The $SI$ unit of work function is the Joule $(J)$,but in atomic and nuclear physics,it is commonly expressed in electron-volt $(eV)$,where $1 \ eV = 1.602 \times 10^{-19} \ J$.
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