Light rays entering the eye are refracted by the lens and form an image on a specific part of the eye. What is this part called?

Where is the image formed in an eye suffering from near-sightedness?

Explain how a normal human eye is able to see distinctly objects placed at a distance as well as those placed at a nearer distance. What is the far point and near point of a normal human eye?

$(a)$ Demonstrate an activity with a well-labelled diagram to prove that white light is made up of seven colours.
$(b)$ Which colour of light bends least and which one the most while passing out from the prism? Also,state the reason for the same.

In the dispersion of white light by a prism,which color of light undergoes the minimum deviation?

Which optical phenomenon is responsible for the early sunrise and delayed sunset?