Question

how does dispersal of light depends upon angle of incidence​

Answer 1

Dispersion is defined to be the spreading of white light into its full spectrum of wavelengths. Refraction is responsible for dispersion in rainbows and many other situations. The angle of refraction depends on the index of refraction, as we saw in The Law of Refraction.

Answer 2

Step-by-step explanation:

It is the angle between the incident ray and the normal direction to the surface of incident of the prism.

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