Ray Optics and ...

The rays of different colors fail to converge at a point after going through a converging lens. This defect is called _________.

How should people wearing spectacles work with a microscope?

In optical instruments, the lenses are used to form images by :

In case of a real and inverted image, the magnification created by the mirror is

If a drop of water is introduced between the glass plate and a convex lens in a Newton's ring system, the ring system

In case of a virtual and erect image, the magnification created by the mirror is

The sum of the reciprocals of object distance and image distance is equal to the __________ of a mirror.

When a wave travels from one medium to another, the quantity which will not change is its

How should people wearing spectacles work with a microscope ?

The lateral displacement depends on ______