CBSE Class 12-science Answered
What causes the phenomenon of dispersion?
Asked by Topperlearning User | 04 Jun, 2014, 13:23: PM
There is dispersion because each colour has its own characteristic wavelength (
).
![](https://images.topperlearning.com/topper/questions/14158_image005.gif)
From Cauchy’s Formula we know that the refractive index of a material depends on wavelength of light.
![](https://images.topperlearning.com/topper/questions/14158_image006.gif)
Answered by | 04 Jun, 2014, 15:23: PM
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