cse • paper_1 • waves_oscillationscse-2018-subject-02-002
Lens aberrations — UPSC CSE 2018 Physics PYQ
Buy PYQ Solution Manual →What do you mean by spherical aberration of a lens? Show that if two plano-convex lenses are kept at a distance equal to the difference of their focal lengths, the spherical aberration would be minimum.
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