Physics

Problem

Determine the longest wavelength of light that can just eject electrons from a metal whose work function is

3.2\,\text{eV}

. a)

5.0 \times 10^{2}\,\text{nm}

2.6 \times 10^{2}\,\text{nm}

3.9 \times 10^{2}\,\text{nm}

7.6 \times 10^{2}\,\text{nm}