answer:The rainbow’s position is entirely determined by where the sun is relative to your head. If you were to draw a line from the sun extending through your head, that line would continue on past your head and point to the center of the arc of the rainbow. The colored bands will then appear along the arc that lies about 40 degrees off that center point. The bands of color are reflected from droplets of water, not molecules. The rainbow is the cumulative result of seeing a reflection of the sun from the backside of billions of individual water drops. Those drops are not at all in the same plane, so the rainbow doesn’t lie at any defined distance from you. Some of the reflecting droplets may be just a few feet away from you, others may be miles away. If a ray that is coming at your eye from a far away drop gets intercepted by another drop along the way, it will simply be bent off in a different direction and you’ll never see it.