The curve between the work function of a meta | vedclass

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(C) The work function $(\phi_o)$ of a metal is defined as the minimum energy required to remove an electron from its surface. As the temperature $(T)$

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(C) The work function $(\phi_o)$ of a metal is defined as the minimum energy required to remove an electron from its surface. As the temperature $(T)$ of a metal increases,the kinetic energy of the electrons increases,making it easier for them to overcome the surface potential barrier. Consequently,the work function $(\phi_o)$ decreases as the temperature $(T)$ increases. This relationship is non-linear,as the thermal energy distribution follows statistical mechanics (Fermi-Dirac distribution),leading to a curve that shows a gradual decrease in $\phi_o$ with increasing $T$.

The curve between the work function of a metal $(\phi_o)$ and its temperature $(T)$ will be:

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