Eyes are considered as ___________ to the world.

Eye lens is ___________ in nature.

Eye lens is made of a _______ material .

The image formed by retina of human eye is ____________ .

The diameter of eye ball in our eye is ___________.

The ability of the eye lens to focus nearby as wll as the distant objects is called _________ of the eye.

Assertion : The protoplasm of plasmodial slime mould is considered purest in the world. Reason : Protoplasm of plasmodium is differentiated into an outer enucleated and central nucleated portions.

In Astigmatism eye cannot see ___________.

Amount of light entering into the eye is controlled by ___________.

The refractive index of eye lens is _________ .