Human Eye and C...

A short-sighted person can see objects most distinctly at a distance of $$16 cm$$. If he wears spectacles at a distance of $$1 cm$$ from the eye, then their focal length to see at a distance of $$26 cm$$ distinctly is 

The near point and the far point of a child are at $$10\ cm$$ and $$100\ cm$$ respectively. If the retina is $$2\ cm$$ behind the eye lens, the range of the power of the eye lens is:

A person can see clearly objects lying between $$25\ cm$$ and $$2\ m$$ from his eye. His vision can be corrected by using spectacles of power:

Match the elements of table I and II.

A person wears glasses of power $$-2.0\ D$$. The defect of the eye and the far point of the person without the glasses will be 

The near point of a person is 50cm and the far point is 1.5m. The spectacles required for reading purpose and for seeing distant objects are respectively:

A defective eye cannot see close objects clearly because their image is formed:

When white light enters a prism, its gets splits into its constituent colours. This is because of:

At noon the sun appears white because:

A beam of light composed of red and green rays is incident obliquely at a point on the face of a rectangular glass slab. When coming out on the opposite parallel face, the red and green rays emerge from :-