cse • paper_1 • waves_oscillationscse-2024-subject-02-009
Thin-lens formula — UPSC CSE 2024 Physics PYQ
Buy PYQ Solution Manual →Consider a thin lens combination of two convex lenses of focal lengths f_1 = +10\text{ cm} and f_2 = +20\text{ cm}, respectively, separated by 25\text{ cm}. Determine the focal length of the combination and the positions of unit planes.
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