Two identical symmetric double convex lenses of focal length f are cut into two equal parts

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🧑‍🏫 Author: Aditya Bhatt Sir   |   🕒 Last Updated: July 13, 2025

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📘Question

Two identical symmetric double convex lenses of focal length f are cut into two equal parts L1 , L2 by AB plane and L3 , L4 by XY plane as shown in figure respectively. The ratio of focal lengths of Llenses L1 and L3 is 

                                                                    (JEE-2025)

✅ Answer

Ans.4

Two identical symmetric double convex lenses of focal length f are cut into two equal parts L1 , L2 by AB plane and L3 , L4 by XY plane as shown in figure respectively. The ratio of focal lengths of Llenses L1 and L3 is

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