本题目来源于试卷: Physics Unit30: Nuclear Physics and Radioactivity，类别为 Generic Physics
[单选题]
A Thallium source wat(,t tk qht:4us v6u9 sn-a6uup4jcwwr r o5l3( certified at $10 \; \mu Ci$ ten years ago. What is its activity now if the half-life is 3.7 years?
A. $4.7 \; \mu Ci$
B. $3.3 \; \mu Ci$
C. $1.5 \; \mu Ci$
D. $1.0 \; \mu Ci$
参考答案: C
本题详细解析:
暂无
| 
Post time 2024-1-22 01:01:29