Hurrah, we come to the end of the module! We began by wondering what Science concept is responsible for different people seeing different things in the rear-view mirror. As we saw, this is due to the First Law of Reflection.

Different people have different heights. So, even though the mirror is reflecting light from many different objects, their eyes can catch only some of the light.

This is why the mirror needs to be adjusted. Adjusting the mirror changes the Angle of Incidence, and we can see what is important.