The inverse Square Law is concerned with intensity of radiation using type D film of 200mm target to film distance, the exposure time was 0.25s. What would be the exposure for the same situation with 400mm target to film distance? M07**********
A. 0.5s
B. 1.0s
C. 2.0s
D. 0.25s
E. 0.125s
A. 0.5s
B. 1.0s
C. 2.0s
D. 0.25s
E. 0.125s