Which part of human eye has the maximum refractive index?

Which part of human eye is affected by cataract?

If the speed of light in air is 3 x 10⁸ m/s, then the speed of light in a medium of refractive index 2 is

Which colour has the maximum deviation in the dispersion of white light passing through the prism?

In the human eye, the image of an object is formed at the:

The human eye is like a camera that has a lens with :