Question

What is the value of \[1\,\mathrm{eV}\] in joules?

विकल्प

• \[10^{8}\,\mathrm{J}\]

• \[1.602\times10^{-19}\,\mathrm{J}\]

• \[1\,\mathrm{J}\]

• \[1.602\times10^{19}\,\mathrm{J}\]

Answer 1

The conversion is \[1\,\mathrm{eV}=1.602\times10^{-19}\,\mathrm{J}\]. An electron volt is therefore a very small amount of energy in joules.