Physics

Problem

A laboratory source is marked 250 μCi. What is the activity expressed in disintegrations per minute (dpm)? a)

9.25 \times 10^{6}\,\text{dpm}

5.55 \times 10^{11}\,\text{dpm}

5.55 \times 10^{8}\,\text{dpm}

6.00 \times 10^{8}\,\text{dpm}