Physics

Problem

A photon has a linear momentum of

4.0\times10^{-27}\,\text{kg}\cdot\text{m/s}

. What is the photon’s energy, expressed in electron-volts (eV)? a)

3.8\,\text{eV}

5.0\,\text{eV}

7.5\,\text{eV}

47\,\text{eV}