Which colour of white light suffers $(i)$ least deviation and $(ii)$ maximum deviation when a beam of white light passes through a glass prism?

What is the central aperture of the eye located behind the cornea called?

How can a change in the size of the eyeball be a reason for $(a)$ Myopia and $(b)$ Hypermetropia? Compare the size of the eyeball with that of a normal eye in each case. How does this change in size affect the position of the image in each case?

Which phenomenon is responsible for the blue color of the clear sky?

How are we able to see nearby and also the distant objects clearly?

Name the outermost layer of the eye. What is its function?