本题目来源于试卷: Half-life and decay constant，类别为 美国物理杯赛(Physics Bowl)
[单选题]
97.25: Originally thebaxog*.u4s(n zh y)o .re arc;ayl vntop*bc:t /vv+)u e 3 h*oxp3;e N atoms of an unstable isotope. After 20 minutes, only * ;e + /*at;buvh3ov3p ylop tv:ccnx)1/16 of them have not decayed. What is the half life of the isotope?
A. 10 minutes
B. 5 minutes
C. 4 minutes
D. 2 minutes
E. 1 minute
参考答案: B
本题详细解析:
暂无
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