The peacock blue color is formed by the superposition of which two colors of light?

Which color of light is scattered the most due to the atmosphere?

After passing through the pupil, light rays fall on which part of the eye and undergo refraction?

$A$ person cannot see objects farther than $12\, m$ from the eye clearly. Name the defect of vision he is suffering from and the lens that should be used for correction of this defect. Illustrate with the help of a diagram,how this lens will correct the defective vision?

How is long-sightedness corrected?

When white light is incident on an object and it reflects all its constituent colors,what color does it appear to be?