what is the cause of dispersion of white light on passing through the prism
Answers
Answer:
Dispersion occurs due to the different degrees of refraction experienced by different colours of light. Light of different colours may travel with the same speed in a vacuum, but they travel at different speeds in some refracting medium. The speed of violet light is relatively lower than that of red light.
Therefore, the refractive index of the medium is largest for violet light and the refractive index is least for red light (in the visible spectrum). As a result, the refraction or bending of violet coloured light is the maximum and that of red coloured light is minimum. This difference in the extent of bending of different colours of light results in the dispersion of white light into its constituent colours as they emerge from a prism
Explanation: