You are looking at a brightly colored hot air balloon rise in the sunny sky. what is the path the light takes in order for you to see the balloon and the individual colors?

The path followed = sun to sky to balloon to eyes

Explanation :

The sun gives light which reaches the sky i.e atmosphere of the earth and gets scattered , after scattering the light from the sky touches the balloon and thus coming from various directions after scattering, it touches the balloon at various points and gets reflected and then reaches our eyes and thus makes the hot air balloon visible to us.

Hence,this is the path followed by the light in order for us to see the brightly colored hot air balloon in a sunny sky and it's individual colors.

the answer is f1 and d2 because if you put equal force on those two points the beam would balance trust me on this

your answer is, orbit around the nucleus