A beam of white light is incident on a combinations of thin prisms with equal angles.In the out going beam the rainbow colours are observed as shown.`mu` stands for refractive index and `theta` for angle of dispersion.Then

A beam of white light is incident on a hollow prism of glass. Then

A prism is made of glass of unknown refractive index. A parallel beam of light is incident on a face of the prism. By rotating the prism, the minimum angle of deviation is measured to be 40^@ . What is the refractive index of the prism ? If the prism is placed in water (mu = 1.33) , predict the new angle of minimum deviation of the parallel beam. The refracting angle of prism is 60^@ .

A prism is made of glass of unknown refractive index.A parallel beam of light is incidence on the first refracting face of prism.The angle of minimum deviation is measured to be 40^(@) .What is the refractive index of material of the prism? The refracting angle of prism is 60^(@) . [ sin50^(@) =0.766]]

A ray of light incident at an angle theta on a refracting face of a prism emerges from the other face normally. If the angle of the prism is 5^@ and the prism is made of a material of refractive index 1.5 , the angle of incidence is.

A converging beam of light is incident on a right angled isosceles prism as shown in the Figure. The marginal rays in the beam are incident at angle +- theta . The refractive index for the glass of the prism is mu = 1.49 (= (1)/(sin 42°)) . Find the maximum value of theta for which no light comes out of the hypotenuse surface.

An upolarized light beam is incident on a surface at an angle of incidence equal to Brewster's angle. Then,