Deviation and Dispersion of light by a Prism

It is desired to make an achromatic combination of two lenses $(L_1 \& L_2)$ ${\omega }_1$ and ${\omega }_2 (<{\omega }_1)$. If the combination of lenses is converging then

Which one of the following spherical lenses does not exhibit dispersion? The radii of curvature of the surfaces of the lenses are as given in the diagrams.

Which one of the following spherical lenses does not exhibit dispersion? The radii of curvature of the surfaces of the lenses are as given in the diagrams.

In the dispersion of white light by a common glass prism, which one among the following is correct?

The refracting angle of a prism is $60°$. What should be the minimum value of the refractive index of the material from which the prism is to be made so that light cannot emerge from the second refracting surface?

The cross-section of a glass prism has the form of an isosceles triangle. One of the refracting faces is silvered. A ray of light falling normally on the other refracting face, being reflected twice emerges through the base of the prism perpendicular to it. Find the angles of the prism.
 

I) The speed of light does not depend upon the nature of medium through which it passes.

II) The beam of light is deviated or refrected from its original path as it passes from one medium to another.

III) When a ray of light is passed through a prism, the wave with shorter wavelength bends more than one with longer wavelength.

Which of the following statements is true?

A beam consisting of red, blue and yellow colours is incident normally on the face $AB$ of an isosceles right angled prism $ABC$ as shown in Fig. 6.5. Complete the diagram to show the refracted and the emergent rays. Given that the critical angle of glass-air interface for yellow colour is $45°$.

Explain the dispersion through an inverted prism.

A thin-angled crown glass prism is combined with a similar flint glass prism to form an achromatic combination. Find the ratio of angles of the respective prisms given that the ratio of their dispersive powers is $3:8$ and ${\mu }_D=1.52$ for crown and $1.65$ for flint.

Glass prism having a refractive index $\mu$, placed in a air, for that angle of minimum deviation of prism is same as angle of prism. Then what is value of angle of prism?

A mixture of red, yellow and violet light is incident on one face of a prism, at an angle of incidence of $50°$. The angle of emergence of the red beam from the other face is $58.56°$. If the angular dispersion of the emerging beam is $4.62°$, then

What is minimum thickness of a lens?

Which lens is thick lens?

What are thick lenses used for?

What are thick and thin lenses?

How do you fix chromatic aberration?

What is chromatic aberration and why does it occur?

What is the best explanation of the chromatic aberration?

A beam of light consisting of red, green and blue colours is incident on a right angled prism. The refractive indices of the material of the prism for the above red, green and blue wavelength are 1.39, 1.44, and 1.47 respectively. The prism will