A sample has an initial activity and a half-life of

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

Problem

A sample has an initial activity

A_0 = 5.0\,\text{MBq}

and a half-life of

10\,\text{h}

. Calculate the total number of disintegrations that occur during the first

6\,\text{h}

. (a)

1.1\times10^{11}

(b)

8.8\times10^{10}

(c)

6.9\times10^{10}

(d)

4.4\times10^{10}