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MHT CET Physics question

PhysicsRay Optics and Optical InstrumentsMHT CET

A lens of refractive index '' has focal length 'f'. When the lens is immersed in a liquid of refractive index , its focal length become ''. Then [MHT-CET 2019]

Answer: (C)

Solution

, giving ; the

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Question ID VK-069535