Physics

Problem

Monochromatic light of frequency

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

falls on a metal surface. The stopping potential measured is

1.5\,\text{V}

. Calculate the work function of the metal in electron-volt. (Take

h = 6.63\times10^{-34}\,\text{J\,s}

e = 1.6\times10^{-19}\,\text{C}

.) a)

1.5\,\text{eV}

1.8\,\text{eV}

3.3\,\text{eV}

4.8\,\text{eV}