The ground state of  $O_2$ has two unpaired electrons with parallel spins. There are two known low – lying excited states of $O_2$. State (A) has the two ${\pi }^{*}$ electrons with the spins antiparallel but in different orbitals. State (B) has the two ${\pi }^{*}$ electrons paired in the same orbital. The energies of the excited states are  $95.00KJ/mol$ and  $157.85\text{ kJ}/mol.$ Above the ground state.
 What is the wavelength (in $\mu m$) of the radiation absorbed in the transition from the ground state to the  first excited state in [Assume $N_a=6.0\times {10}^{23},h=6.6\times {10}^{-34},c=3\times {10}^8$ ]