In order to determine correct exposure times when different cone (BID) lengths are utilized while minimizing operator exposure, you should use inverse square law.
Inverse square law can be defined as a scientific law which states that the intensity of a physical quantity such as gravitational force or illumination, is inversely proportional to the square of the distance from the source.
In this context, we can logically infer and logically conclude that to determine the correct exposure times when different cone (BID) lengths are utilized while minimizing operator exposure, an inverse square law should be applied.
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