本题目来源于试卷: Nuclear Energy; Effects and Uses of Radiation，类别为 IB物理学
[问答题]
Why must the fissionf(- pl+ )xxgsw prok8+ayitoy*kr8 ,;bh+kv u 3f ycess release neutrons if it is to be useful?
参考答案:
To get nuclei to fission, they must be bombarded by neutrons. This can be done using an external source, but then there is a large input of energy into the system, making it less efficient and so less useful. To make the fission reaction useful, it needs to be self-sustaining. To create such a chain reaction, each time a nuclei captures a neutron and fissions, one or more neutrons must be emitted in order to sustain the process.
本题详细解析:
暂无
| 
