Ray Optics and ...

The refractive indices of the material of a lens for violet, yellow and red colours of light are respectively $$1.66, 1.64$$ and $$1.62$$. The mean focal length of the lens is $$10 cm$$. Determine the chromatics aberration of the lens between the violet and the red colors.

For which of the two lenses $$L_1$$ and $$L_2$$ the chromatic aberration will be more if the dispersive power of the material of $$L_1$$ is less than that of $$L_2$$:

The unit of the longitudinal chromatic aberration for a thin lens is:

The chromatic aberration due to a lens depends upon:

The lateral shift produced by a glass slab increase with _________ in the thickness of the glass slab.

The type of lens used as a simple microscope.

Calculate the index of refraction of a liquid from the following into glass:
Reading for the bottom of an empty breaker : 11.324 cm
Reading for the bottom of the beaker, when partially filled with the liquid : 11.802 cm
Reading for the upper level of the liquid in the beaker : 12.895 cm

One way to reduce chromatic aberration is by:

When an extended white object is placed before a convex lens, colored images are formed. The image of the smallest size is of the color:

The focal length of a convex lens made of flint glass is $$15cm$$. To remove its chromatic aberration, it is placed in contact with a concave lens made of crown glass. Find the focal length of the concave lens. The ratio of dispersive powers of flint glass to crown glass is $$1.5$$.