^Dispersive power

^Dispersive power

It is independent of A but depends upon nature μmaterial.

From a single prism it is not possible to get deviation without dispersion, or to get dispersion without deviation, however the two or more be combined in such a way that a white ray of light it may undergo:

(a) Dispersion without deviation (i.e. θ without δ)

(b) Deviation without dispersion (i.e. δ without θ)

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