A laboratory source is marked 250 μCi

PHYSICS · Single correct · A Level · Physics · Nuclear physics · Nuclear 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}

(b)

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

(c)

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

(d)

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