Photons of energy are incident on a metal whose work function is

PHYSICS · Subjective · A Level · Physics · Particles and radiation · Particles and radiation

Problem

Photons of energy

5.5\times10^{-19}\,\text{J}

are incident on a metal whose work function is

2.0\,\text{eV}

. Find the maximum kinetic energy of the emitted electrons in joules. (

1\,\text{eV} = 1.6\times10^{-19}\,\text{J}