Perera K. Sarath D2025-02-172025-02-172024-05https://dr.ichemc.ac.lk/handle/123456789/221Page 66-71 Student CornerPhotochemistry studies light induced chemical reactions and physical processes. Electronically excited molecules are formed by the absorption of suitable radiation in the visible and near ultraviolet region. Naturally occurring phenomena of photochemistry are photosynthesis, phototaxis, photoperiodism, vision and mutagenic effects of light Photochemistry is divided into two processes: - (i) Photophysical process and (ii) Photochemical process.enPhotochemistryBeer Lambert lawGrotthuss-Draper lawStark Einstein lawArticle