Physics

Problem

The work function of a certain metallic surface is

2.5\,\text{eV}

. Determine its threshold wavelength. a)

3.10\times10^{2}\,\text{nm}

6.20\times10^{2}\,\text{nm}

4.96\times10^{2}\,\text{nm}

2.48\times10^{2}\,\text{nm}