Two thousand (2000) millirem is equivalent to how many rem?

In the context of radiation measurement, the rem (Roentgen equivalent man) is a unit used to measure the biological effect of ionizing radiation on human tissue. The millirem is a subunit of the rem, where 1 rem is equal to 1,000 millirem. Therefore, to convert millirems to rem, you divide the number of millirems by 1,000.

In this case, when converting 2,000 millirem to rem, you take 2,000 and divide it by 1,000, which results in 2 rem. This conversion is a fundamental concept in radiation safety and helps professionals communicate and manage exposure levels effectively.

The other options represent incorrect conversions based on the basic relationship between rem and millirem. A misunderstanding of this relationship or making arithmetic errors could lead to significantly inflated or deflated values, underscoring the importance of accurately converting between these units in radiation safety practices.