Dispersion of Light and 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

A thin prism of angle $5°$ is placed at a distance of $10 \mathrm{cm}$ from the object. The distance of the image from the object is (given $\mathrm{\mu }$ of prism$=\text{1.5}$)

A prism has a refractive index $\sqrt{\frac{3}{2}}$ and refracting angle $90°$. Find the minimum deviation produced by prism

A ray incident at angle 53^o on a prism emerges at an angle at 37^o as shown. If the angle of incidence is made 50^o, which of the following is a possible value of the angle of emergence.

A parallel beam of light falls normaly on the first face of a prism of small angle. At the second face it is partly transmitted and partly reflected, the reflected beam striking at the first face again, and emerging from it in a direction making an angle 6^o 30' with the reversed direction of the incident beam. The refracted beam is found to have undergone a deviation of 1^o 15' from the original direction. Find the refractive index of the glass and the angle of the prism.

The refractive indices of the crown glass for violet and red lights are $1.51$ and $1.49$ respectively and those of the flint glass are $1.77$ and $1.73$ respectively. A prism of angle $6°$ is made of crown glass. A beam of white light is incident at a small angle on this prism. The other thin flint glass prism is combined with the crown glass prism such that net mean deviation is $1.5°$ anticlockwise.
A screen is placed normal to the emerging beam at a distance of $2 \mathrm{m}$ from the prism combination. Find the distance between red and violet spot on the screen. Which is the topmost colour on screen.

How does the angle of minimum deviation of a glass prism vary, if the incident violet light is replaced with red light?

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.

A given ray of light suffers minimum deviation in an equilateral prism $P$. Additional prism $Q$ and $R$ of identical shape and of the same material as $P$ are now added as shown in the figure. The ray will now suffer

A given ray of light suffers minimum deviation in an equilateral prism $P$. Additional prism $Q$ and $R$ of identical shape and of the same material as $P$ are now added as shown in the figure. The ray will now suffer

A diverging beam of light from a point source S  having divergence angle  $\alpha$ , falls symmetrically on a glass slab as shown. The angles of incidence of the two extreme rays are equal. If the thickness of the glass slab is t and the refractive index n, then the divergence angle of the emergent beam is

In the given figure, a ray of light falls obliquely on a vertical glass slab and after refraction from slab falls on a vertical plane mirror at an angle $x$. the value of $x$ is

A plane polarized blue light ray is incident on a prism such that there is no reflection from the surface of the prism. The angle of deviation of the emergent ray is $\delta ={60}^{\mathrm{o}}$ (see Figure-$1$). The angle of minimum deviation for red light from the same prism is ${\delta }_{\min }={30}^{\mathrm{o}}$ (see Figure-$2$). The refractive index of the prism material for blue light is $\sqrt{3}$. Which of the following statement(s) is(are) correct?

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

The refractive index of a transparent liquid filled in an equilateral hollow prism is $\sqrt{2}$. The angle of minimum deviation for the liquid will be _______$°$.

$ABC$is $30°, 60°, 90°$ prism respectively. Incident Ray$PQ$ is perpendicular to $BC$ . Critical angle of prism material is $50°$ degree and refractive index is $\sqrt{3}$ . Calculate angle of emergence

The refractive index of equilateral prism is $\mu =\sqrt{2}$, then find its minimum angle of deviation (in degree).

At what maximum angle should a ray of light be incident on the face of a prism of refracting angle $75°$ so that it just suffers total internal reflection at the other face? The refractive index of the material of the prism is $\surd 2$.