With regard to the inverse square law,if the focal spot-to-film distance (FFD)doubles,the exposure time should:

Name: With regard to the inverse square law,if the focal spot-to-film distance (FFD)doubles,the exposure time should:
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According to the inverse square law, if the distance doubles, the intensity of the radiation (or light) at the new distance is 1/4th of its original intensity. To maintain the same exposure, the exposure time must quadruple to compensate for the decrease in intensity.

With Regard to the Inverse Square Law,if the Focal Spot-To-Film