A radium source shows an activity of

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

Problem

5.55\times10^{7}\,\text{Bq}

. Its activity expressed in millicurie (mCi) is closest to ____. (a)

15\,\text{mCi}

(b)

1.5\,\text{mCi}

(c)

150\,\text{mCi}

(d)

0.15\,\text{mCi}