Radioactive decay, half-life and uses

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Question 30

Easy

An environmental scientist monitors the activity of a water sample collected from a geothermal spring containing a short-lived radioactive tracer. The scientist uses a Geiger-Müller counter to record the activity of the sample over a period of 10 days. Their results are plotted in Figure 1.

Figure 1: Graph showing the measured activity of a water sample over 10 days

State one reason why the recorded activity on the counter does not fall to zero after 8 days.

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Radioactive decay, half-life and uses

Question 30

Radioactive decay, half-life and uses Questions

Radioactive decay, half-life and uses

Question 30

Radioactive decay, half-life and uses Questions