Find the value of the angle of emergence from the prism. The refractive index of the glass is $\sqrt{3}$. (in $^{\circ}$)

The respective angles of the flint and crown glass prisms are $A'$ and $A$. They are to be used for dispersion without deviation. The ratio of their angles $A'/A$ will be:

$A$ graph is plotted between angle of deviation $(\delta)$ and angle of incidence $(i)$ for a prism. The nearly correct graph is

In the diagram,the ray passing through the prism is parallel to the base. The refractive index of the material of the prism is:

Three glass prisms $A, B$ and $C$ of the same refractive index are placed in contact with each other as shown in the figure,with no air gap between the prisms. $A$ monochromatic ray of light $OP$ passes through the prism assembly and emerges as $QR$. The conditions of minimum deviation are satisfied in which prisms?

One face of a glass prism is silver-polished. $A$ light ray falls at an angle of $45^{\circ}$ on the other face. After refraction, it is subsequently reflected from the silvered face and then retraces its path. The refracting angle of the prism is $30^{\circ}$. The refractive index of the prism is: