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Focal Length of Liquid Filled Lens Combination

Focal Length of Liquid Filled Lens Combination

❓ Question A concavo-convex lens of refractive index: μ g = 3 2 \mu_g=\frac{3}{2} and radii of curvature: R 1 = 30  cm , R 2 = 20  cm R_1=30\text{…