What is a dispersive medium?
(N/A) dispersive medium is a medium in which the phase velocity of a wave depends on its frequency. In the context of optics,a dispersive medium is one where the refractive index $n$ varies with the wavelength $\lambda$ of light. As a result,different colors (wavelengths) of light travel at different speeds through the medium,causing them to refract at different angles. $A$ classic example of a dispersive medium is glass or water,which causes white light to split into its constituent colors (dispersion) when passing through a prism.
Explore More
Similar Questions
The prism angle of a prism is $10^{\circ}$. The refractive indices for red and violet colors are $1.51$ and $1.52$ respectively. The dispersive power will be .....
Medium
View SolutionThe splitting of white light into several colours on passing through a glass prism is due to
Easy
View SolutionThe refractive index of the material of the prism for violet colour is $1.69$ and that for red is $1.65$. If the refractive index for the mean colour is $1.66$,calculate the dispersive power of the material of the prism.
Easy
View SolutionThe focal lengths of a convex lens for red and blue light are $100 \text{ cm}$ and $96.8 \text{ cm}$ respectively. The dispersive power of the material of the lens is:
Medium
View SolutionWhen white light enters a prism,it gets split into its constituent colours. This is due to
Easy
View SolutionVedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo