Lesson: The Dispersive Power of a PrismPhysics
In this lesson, we will learn how to calculate the dispersive power of a prism, given the refractive indices of the different colours of light passing through it.
White light is dispersed by a prism. For the shortest wavelength light in the white light, the prism has a refractive index of 1.48, and for the longest wavelength light, the prism has a refractive index of 1.44. What is the dispersive power of the prism? Give your answer to three decimal places.
Which of the following is the term used to refer to the separation of white light into its component wavelengths due to the variation of the refractive index with the wavelength of an object that the white light passes through?
The diagram represents red, green, and blue light being deviated through an angle by a prism. Which of the following correctly describes how , the wavelength of the light, relates to the angle ?