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Gupta Ravi
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Asked: 2025-01-06T05:34:46+00:00 In:

A glass lens of refractive index 1.5 is placed in a trough of liquid. What must be the refractive index of the liquid in order to mark the lens disappear?

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Refractive index of liquid should be 1.5.
Class 12 Physics
Chapter 9 Ray Optics and Optical Instruments Session 2024-2025.

class 12 physicsshort answer questionsthe refractive index of the liquid in order to mark the lens disappear
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    1. To make the glass lens disappear, the refractive index of the liquid must match that of the glass, i.e., 1.5. This eliminates refraction at the lens surface, making it optically invisible in the liquid.

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      https://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-9/

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