QUESTIONS

A glass prism placed in a homogeneous transparent medium will deviate a light ray towards its base only if 

A thin prism of glass placed in air produces a deviation of $4°$ in a light ray. If the prism be placed in water, what would be the new deviation? $\left({}_a\mu _g=\frac{3}{2}, {}_a\mu _w=\frac{4}{3}\right)$

Calculate the angular dispersion of a $10°$ prism of glass. The refractive indices of glass for violet and red lights are $1.66$and $1.64$ respectively.

Find the angular dispersion between red and blue rays of light produced by a flint glass prism of refracting angle $6°$. The refractive indices of flint glass for red and blue light are $1.644$ and $1.664$ respectively.

The refractive indices for light of violet, yellow and red colours for glass are respectively $1.632, 1.620$ and $1.613$. Find the dispersive power of glass.

The deviation produced for violet, yellow and red lights for crown glass are $3.75°, 3.25°$ and $2.86°$ respectively. Calculate the dispersive power of the crown glass.

Calculate dispersive power of a transparent material given: $n_V=1.56, n_R=1.54, n_Y=1.55$.

The refractive indices of a material for red, violet and yellow lights are $1.52, 1.62$ and $1.59$ respectively. Calculate the dispersive power of the material. If the mean deviation is $40°$, then will be the angular dispersion produced by a prism of this material?