Physics

Problem

Calculate the minimum frequency of a photon required to ionise a hydrogen atom in the ground state. (Take

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

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

and ionisation energy of hydrogen

=13.6\,\text{eV}

.) a)

6.6\times10^{15}\,\text{Hz}

3.3\times10^{15}\,\text{Hz}

2.5\times10^{15}\,\text{Hz}

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