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❓ Question How do we calculate the equivalent power when two thin lenses are placed at a distance from each other? 🖼 Concept Image ✍️ Short…

❓ Question Two thin convex lenses of focal lengths f 1 = 30  cm , f 2 = 10  cm f_1 = 30\text{ cm}, \quad f_2 = 10\text{ cm} are placed coaxially,…