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.

What are thick and thin lenses?

Refractive index of a transparent material is

Dispersion without deviation is produced by two thin $($small angled$)$ prisms which are combined together. One prism has angle $5.5°$ and refractive index $1.56$. If the other prism has refractive index $1.7$, what is its angle?

Draw the schematic diagram on Newton$\text{'}$s classic experiment on dispersion of white light. Explain the reason for the same.

Dispersive power is dependent on

During dispersion of white light by the glass prism, which of the following light of the spectrum bends the most$?$

Thick lenses show chromatic aberration due to _____ of light.

The refractive indices of flint glass prism for violet, yellow and Red colours are $1.790$, $1.795$ and $1.805$ respectively, find dispersive power of the flint glass. (upto five decimal places)

A thin prism P₁ with angle $4^{\mathrm{o}}$ and made from glass of refractive index $1.54$ is combined with another thin prism P₂ made from glass of refractive index $1.72$ to produce dispersion without deviation. What is the angle of prism in degree ?

A parallel beam of white light falls on a convex lens. Images of violet, yellow and orange light are formed on the other side of the lens at $t$ distances $24 \mathrm{cm},30 \mathrm{cm}$ and $32 \mathrm{cm}$ respectively. What is the dispersive power of the material of the lens ? (Round off your answer upto two decimal places)

Assertion : Dispersive power of an equilateral triangular prizm is greater than a thin lens if both are kept in air

Reason : Despersive power is $\beta =\frac{n_v-n_r}{n_y-1}$ is valid only for thin prizm, but not valid for a lens

For a material medium, the values of refractive index for violet and red colours are given as $n_{\mathrm{v}}=1.56$ and $n=1.44$. The dispersive power of a prism made out of this material is

A light ray through a glass prism of angle $60°$ under goes a minimum deviation of $30°$. What is the speed of light in the prism?
(Assume $c=$ speed of light in air)

Two lenses having focal lengths $+10 \mathrm{cm}$ and $-15 \mathrm{cm}$ when put in contact behave like convex lens. If they have zero longitudinal chromatic aberration, the ratio of dispersive powers is:

Consider the four different cases of dispersion of light ray which has all the wavelengths from ${\mathrm{\lambda }}_1$ to ${\lambda }_2\left({\lambda }_1>{\lambda }_2\right).$ The dotted line represents the light ray of wavelength ${\lambda }_{avg }$. Which ray diagram is showing maximum dispersive power?

Two identical prisms with slightly different indices are located as shown. Angle $\theta$ is small. When a laser beam strikes one of the prisms perpendicular to the surface, the refracted ray is deviated by a small angle $\varphi .$ The difference between the indices of refraction of the prism in terms of $\theta$ and $\varphi .$

Find angular dispersion due to glass prism of refracting angle  $6°$. Refractive index for red and violet light is given as $1.514$ and $1.523$ respectively.