本题目来源于试卷: Physics Unit30: Nuclear Physics and Radioactivity，类别为 Generic Physics
[单选题]
The radioactivity due to carbon-14 me12x.( qlta)1twv cg ymckj gv2rm(r861se m.mapisf 8mtld0m 1y/i8e 5sured 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 the arl/t 05fdm1 8emps8yiitifact 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
| 
Post time 2024-1-22 01:01:29