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Dev Dhawan
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Asked: 2025-01-08T06:36:43+00:00 In:

The focal length of a biconvex lens is equal to the radius of curvature of either face. What is the refractive index of the lens material?

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n = 1.5.
Class 12 Physics
Chapter 9 Ray Optics and Optical Instruments Session 2024-2025.

class 12 physicsrefractive index of the lens materialshort answer questions
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    1. For a biconvex lens with focal length equal to the radius of curvature, the refractive index of the lens material is 1.5. This follows from the lens-maker’s formula with symmetric curvature.

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