cse • paper_1 • waves_oscillations
[UPSC CSE 2015] Geometrical Optics (Q144, 10M)
Using matrix method, find out the equivalent focal length for a combination of two thin lenses of focal lengths f_1 and f_2 separated by a distance a.
Using matrix method, find out the equivalent focal length for a combination of two thin lenses of focal lengths f_1 and f_2 separated by a distance a.
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