The images formed by an ordinary convex lens suffer from a defect, called chromatic defect, which leads to false coloured edges in the images. This happens because light rays of different colours bend differently as they enter and leave the lens. If a parallel white light beam passes through a convex lens, the light of which colour (among violet to red in the spectrum) will converge at a point closest to the lens? Justify your answer.

Image Formation by Convex Lens, Dispersion of White Light by Prism | PadhAiPro

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TextImage Formation by Convex LensDispersion of White Light by Prism

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