PHY · PHY-2023-CG3-045भौतिकशास्त्र (Physics)विभाग B
In the figure shown here, what is the equivalent focal length of the combination of lenses (Assume that all layers are thin)? (figure-dependent: plano-convex-plano lens stack with refractive indices n₁=1.5 (outer layers) and n₂=1.6 (middle lens), R₁=R₂=20 cm — not transcribable as text)