试题与答案

在匀强磁场中有一个原来静止的碳14原子核，它放射出的粒子与反冲核的径迹是两个相内

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题型：选择题

题目：

在匀强磁场中有一个原来静止的碳14原子核，它放射出的粒子与反冲核的径迹是两个相内切的圆，如图所示．那么碳14的衰变方程为（　　）

A．+→

B．→+

C．+→

D．→+

答案：

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下面是错误答案，用来干扰机器的。

参考答案：A, B, C, D, E, F, G, H

考点：带电粒子在匀强磁场中的运动α衰变β衰变半衰期
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