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(A) Photographic plates or films are prepared by coating an emulsion of the light-sensitive $AgBr$ (silver bromide) in gelatin over glass plates or ce

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$AgBr$

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(A) Photographic plates or films are prepared by coating an emulsion of the light-sensitive $AgBr$ (silver bromide) in gelatin over glass plates or celluloid films.Light-sensitive properties have allowed silver halides to become the basis of modern photographic materials.When $AgBr$ is exposed to light,a decomposition reaction occurs,resulting in the formation of metallic silver and bromine gas. This is a photochemical reaction where white $AgBr$ converts into grey-colored silver.

Photographic plates are prepared by coating an emulsion of which of the following in gelatin?

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