Describe the Single and double beam instruments explain the difference between in space and in time. As well draw a diagram of each system. Describe absorption in specific the transitions that are observed in UV-Vis spectroscopy. Describe the solvent effects on absorption as well as hypsochromic and bathochromic sifts and cut off.

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Photochemistry

Photochemistry is the part of chemistry that studies the various mechanisms of reactions that are triggered by the presence of light energy. It also helps to study the changes involved in a molecule that can undergo the absorption of radiation.