How much radiation can Radioactive 3 packaging emit at a distance of 3 feet?

The correct answer of 10 mRem/hour for Radioactive 3 packaging at a distance of 3 feet is based on the regulatory definitions and exposure limits established for different classifications of radioactive materials. Radioactive 3 classifies materials with higher levels of radiation than the lower classifications but still meets certain limits on radiation exposure.

Specifically, Radioactive 3 packaging is designed to contain materials that have a maximum allowable radiation level typically set at 10 mRem/hour at a distance of 3 feet. This is in line with safety standards to ensure that the radiation exposure is kept within permissible levels for personnel and the general public during transport. Thus, this level is consistent with industry regulations intended to manage safety while working with radioactive materials.

Higher levels of radiation emissions, such as 50 mRem/hour, 200 mRem/hour, or 1 mRem/hour, would not align with the established safety limits and classifications for Radioactive 3 packaging. Therefore, 10 mRem/hour accurately reflects the expected emission levels for this category.