So, once we figure out what our probability of backscattering is, we'll just raise that to the 1/2, and we'll multiply that by 12 . 20 centimeters.

所以一旦我们,知道了散射概率，我们开根号。

麻省理工公开课 - 化学原理课程节选

So, what we want to do now is see if we can understand how this backscattering experiment worked. So we will do our own backscattering experiment.

希望现在能更简洁一点,好，我们现在,要做的就是看看,我们是否理解了。

麻省理工公开课 - 化学原理课程节选

All right. So now all we have to do is figure out this probability of backscattering.

在乘以12。20厘米,好，现在只要。

麻省理工公开课 - 化学原理课程节选

But in our case, the probability of backscattering is going to be the number of balls that backscatter, and that's going to be divided by the total number of ping-pong balls.

用20除以132000，但现在背散射,的概率是被散射回来的小球，除以总的小球数,你们记得。

麻省理工公开课 - 化学原理课程节选