What happens to a film that has not been exposed to radiation?

When a film has not been exposed to radiation, it remains unaffected by any light or radiation exposure, resulting in a clear appearance. This is because the film contains emulsion layers that respond to radiation, and without any exposure, these layers do not undergo any chemical changes. As a result, the film will not show any images or darkening associated with exposure.

In practical applications, such as dental radiography, a film that has not been processed or exposed will exhibit this clarity, confirming that it is in an unaltered state. The clarity of unexposed film is essential for distinguishing between exposed and unexposed areas during processing and in assessing the quality of the imaging process.