Which of the following might be considered a viable application of a radioactive tracer?
A)adding a stream of radioisotopes to wastewater to examine where pollution goes when it flows into the ocean
B)placing radioactive sources around a room to trace the location of people as they move through the room
C)embedding a radioactive plug in a valuable necklace so that its location can be determined using a Geiger counter
D)all of the above
E)none of the above

Question

Quizplus · Accepted Answer

A radioactive tracer can be used to track the flow of a substance, such as pollution, in a system. Wastewater can be labeled with a radioactive tracer to determine how it moves and where it goes when it is released into a body of water.

Option B is not a viable application of a radioactive tracer because it involves exposing people to unnecessary radiation.

Option C is also not a viable application because it is unnecessary and potentially dangerous to embed a radioactive plug in a valuable necklace.

Which of the Following Might Be Considered a Viable Application