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MHT CET 2025 Physics question

PhysicsRay Optics and Optical InstrumentsMHT CET 2025

A convex lens of refractive index 1.5 has power 3D. It is placed in a liquid of refractive index 2. The new power of the lens is

Answer: (C)

Solution

Lens maker's formula in air: . In a liquid of index : \dfrac{n_g}{n_l}\dfrac{1.5}{2}$ -

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Question ID VK-102324