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MHT CET Physics question

PhysicsRay Optics and Optical InstrumentsMHT CET

A convex lens of refractive index has a power of 2.5. If it is placed in a liquid of refractive index 2, the new power of the lens is (D – dioptre) [MHT-CET 2019]

Answer: (A)

Solution

, so D

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Question ID VK-069538