Question

Transperent Photographic films gradually change there colour when exposed to light due to

Answer 1

Answer:

When exposed to light, a chemical reaction darkens the film to produce an image. ... When film containing Ag+ and Cl- is exposed to light energy, the chlorine ion's extra electron is ejected and then captured by a silver ion.

Explanation:

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Answer 2

Answer:

Transparent Photographic films gradually change there colour when exposed to light due to Thermal Decomposition Reaction.