Let us model a pi electron in a tyrosine, by assuming it is a particle trapped in a 2-dimmensional square box. As you should know, the maximum of absorption is at about 280nM. Calculate the approximate size of the box used to model the tyrosine ring. Is this a reasonable model for the system? Hint: provide an expression for the quantized energy levels of the elctron and calculate the lowest energy corresponding to transition from the ground state to the excited state.