Kanupriya presented on spin-orbital and vibrational coupling to Dr. Manish Kumar. Electronic spectroscopy relies on quantized energy states observed in the UV region. Selection rules determine allowed electronic transitions, but relaxations can occur. Spin-orbital coupling arises from incomplete quenching of orbital motion, causing spin mixing and partial allowance of forbidden transitions, especially in heavier atoms. Vibrational coupling also makes transitions partly allowed by combining electronic states with vibrational states, removing the center of symmetry assumed by selection rules. As a result of these relaxations, broad absorption bands instead of sharp bands are observed in electronic spectra.