ifos • paper_1 • waves_oscillationsifos-2012-subject-02-004
Thin-lens optics — UPSC IFoS 2012 Physics PYQ
Buy PYQ Solution Manual →Two lenses of focal lengths 8\text{ cm} and 4\text{ cm} are placed at a certain distance apart. Calculate the distance between the lenses if they form an achromatic combination.
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