A radioactive tracer has an initial activity of and a half-life of

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

Problem

A radioactive tracer has an initial activity of

8.0\,\text{kBq}

and a half-life of

6.0\,\text{days}

. What is the tracer’s activity after

15\,\text{days}

? (a)

2.0\,\text{kBq}

(b)

3.4\,\text{kBq}

(c)

1.4\,\text{kBq}

(d)

0.66\,\text{kBq}