Answer
$B).\ 1.2Ci$
Work Step by Step
We can find the activity of the sample as
$R=\lambda N$
We plug in the known values to obtain:
$R=(9.98\times 10^{-7})(4.5\times 10^{16})(\frac{1Ci}{3.7\times 10^{10}})$
$R=1.2\ Ci$
Physics Technology Update (4th Edition)
by Walker, James S.
Published by
Pearson
ISBN 10:
0-32190-308-0
ISBN 13:
978-0-32190-308-2
Chapter 32 - Nuclear Physics and Nuclear Radiation - Problems and Conceptual Exercises - Page 1155: 91
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