Physics

Problem

A certain metal requires a threshold frequency of

6.0\times10^{14}\,\text{Hz}

for photoelectrons to be emitted. What is the metal’s work function, expressed in electron-volts (eV)? a)

6.6\,\text{eV}

1.6\,\text{eV}

2.5\,\text{eV}

4.0\,\text{eV}