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MHT CET 2024 Physics question

PhysicsRay Optics and Optical InstrumentsMHT CET 2024

Two thin lenses have a combined power of +9D. When they are separated by a distance of 20 cm, their equivalent power becomes D. The power of both the lenses in dioptre are respectively

Answer: (B)

Solution

In contact, D. When separated by cm m, . So , giving and . The numbers with

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Question ID VK-092718