Human Eye and C...

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

When light rays enter the eye, most of the refraction occurs at the:

The far point of a myopic eye is 250 cm. The correcting lens should be a

What are the colours of the Sun observed most during sunrise/sunset and noon? 

A man cannot see clearly the objects beyond a distance of 20 cm from his eyes. To see distant objects clearly the kind of lenses and its focal length must be 

A hollow glass prism gives

In the figure of the human eye, the cornea is represented by the letter :

Eye lens contains a watery liquid called:

Red light is used as danger signal because it is:

Long-sightedness : Hypermetropia