A. white light consists of a mixture of seven different colour
B. the refractive index of glass is different from each constituent colour of white light
C. the speed of each colour of light in the glass is proportional to the refractive index of glass for each colour
D. the speed of each colour of light in the glass is proportional to the angle of refraction in the prism
Correct Answer: Option D
D. the speed of each colour of light in the glass is proportional to the angle of refraction in the prism
![A ray of light incident at an angle θ in a rectangular prism grazes the surface of the prism on emerging from the prism. Determine the value of the angle. [Absolute refractive index of the material of the prism is 1.5]](https://erudites.ng/wp-content/plugins/contextual-related-posts/default.png "A ray of light incident at an angle θ in a rectangular prism grazes the surface of the prism on emerging from the prism. Determine the value of the angle. [Absolute refractive index of the material of the prism is 1.5]")
