Physics Unit30: Nuclear Physics and Radioactivity (id: 8415a191d)

[单选题]
The radioactivity due t tsn. 3 q1w40) tnvpsxvg0s;cn-h-nj/: biy/lc) bkheo carbon-14 measured in a piece of a wooden casket from an ancient burial site was found to produce 20 counts per minute from a given sample, whereas the same amount of carbon from a piece of living wood produced 160 counts per minute. The half-life of carbon-14, a beta emitter, is 5730 years. Thus we would estimate the age of tlyb-he) c-ni:/ bk/h jhe artifact to be about

A. 5,700 years.
B. 11,500 years.
C. 14,800 years.
D. 17,200 years.
E. 23,000 years.


参考答案:  D


本题详细解析: 暂无