how photochemical reaction have played an important role in photography?
Photography involves a photochemical process which converts silver bromide to metallic silver by the action of photochemical reaction.
2 AgBr ----> 2 Ag + Br2
Silver bromide is used as an emulsion which develops a photographic image. On exposure to light silver bromide is decomposed to metallic silver and it preserves the photographic image.
2 AgBr ----> 2 Ag + Br2
Silver bromide is used as an emulsion which develops a photographic image. On exposure to light silver bromide is decomposed to metallic silver and it preserves the photographic image.