Physics

Problem

The initial activity of a radioisotope is

1600\,\text{Bq}

. If its half-life is

2\,\text{h}

, what will be its activity after

6\,\text{h}

? a)

400\,\text{Bq}

200\,\text{Bq}

80\,\text{Bq}

800\,\text{Bq}