The light sensitive compound on most photographic films is silver bromide AgBr. A film
Channel: Doubtnut
Date: 2020-07-26

The light sensitive compound on most photographic films is silver bromide AgBr. A film is exposed when the light energy of dissociation of AgBr is `10^(5)Jmol^(-1)`. For a photon that is just able to dissociate a molecule of AgBr, the photon energy is