Question

Explain how our eyes can see the distance as well as the nearby objects with almost the same clarity

Answer 1

.....................................

Answer 2

Our eyes have a eye lens whose shape we can change according to the object distance with the help of ciliary muscles in the eyes which have suspensor ligament attached to it

when the shape of eye lens changes the refractive index also changes so that it helps us to focus the image properly on the retina

eg:-
hold a pencil very near to your eyes and try to look at some distant object u will observe two images of the pencil because the refractive index of our eye lens is set to see a distant object and the light rays coming from the pencil enters our eyes and due to different refractive indices of our eyes our brain is not able to superimpose the two images of the pencil properly but can superimpose the two images of that distant object properly