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MHT CET 2024 Physics question

PhysicsRay Optics and Optical InstrumentsMHT CET 2024

A convex lens of focal length 'f' produces a real image whose size is 'n' times the size of an object. The distance of the object from the lens is

Answer: (D)

Solution

For a real image the magnitude of magnification is (distances measured as magnitudes), so . Lens formula with real-is-positive convention: $Missing argument for \dfrac\dfrac1f = Missing argument for \dfrac\dfrac1u + Missing argument for \dfrac\dfrac1v = Missing argument for \dfrac\dfrac1u + Missing argument for \dfrac\dfrac1{nu} =

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Question ID VK-092894