A crown glass prism of refracting angle`6^@` is to be achromatised for red and blue light using a flint glass prism.Find the angle of the second prism ang also the mean deiation from the following data:
Refractive index for crown glass :`mu_r=1.520,mu_b=1.531`
Refractive index for flint glass:`mu_r = 1.662 , mu_b = 1.684`.

Determine the angle of flint glass prism,which should be combined with a crown glass prism of 5^@ so as to give dispersion but no deviation. Given,for crown glass: mu_v=1.523,mu_r=1.515, for flint glass: mu_v=1.688,mu_r=1.650 .

A ray of light is incident on the glass prism at an angle of 40^@ .Find the angle of emergence,if the angle of prism is 60^@ and refractive index.

Find the ratio of the powers of a glass lens in water and in air .Given,refractive index of glass =1.50,refractive index of water=1.33.

What is the Brewster angle for air to glass transition? (Refractive index of glass = 1.5.)

For a glass prism (mu=sqrt 3) the anlge of minimum deviation is equal to the angle of the prism. Find the angle of the prism.

If refractive index of glass w.r.t. air is 1.55, then what is the refractive index of air w.r.t. glass.

A combination of two prisms,one of flint and other of crown glass produces dispersion without deviation.The angle off teh flint glass prism is 15^@ .Calculate teh angle of crown glass prism and the angular separation of the red and violet rays on emregence from the spectroscope .( mu for crown glass = 1.52, mu for flint glass=1.65 , omega for crown glass 0.02 , omega for flint glass =0.03).

Refractive index of glass is 1.5 find critical angle for glass.