论文部分内容阅读
问题材料:如图1所示,是证实玻尔关于原子内部能量量子化的一种实验装置示意图.由电子枪A射出的电子,射入充有氦气的容器B中,电子在O点与氦原子发生碰撞后进入速度选择器C,而氦原子由低能级被激发到高能级.速度选择器C由两个同心的圆弧形电极P1和P2组成,电极间场强方向沿同心圆的半径,当两极间加电压U时,只允许具有确定能量的电子通过,并进入检测装置D,由检测装置测
PROBLEM MATERIALS: A schematic of an experimental setup that validates Bohr’s quantification of the energy inside a atom, as shown in Figure 1. The electrons emitted by electron gun A are injected into vessel B filled with helium and the electrons at O and helium The atoms collide and enter the speed selector C, and the helium atoms are excited from the low energy level to the high energy level. The speed selector C is composed of two concentric arc-shaped electrodes P1 and P2. The field strength direction of the electrodes is along the radius of the concentric circle , When the voltage between the two poles U, only allows the determination of electronic energy through, and enter the detection device D, measured by the detection device