As the glass lens of refractive index n = 1.45 disappears when immersed in a liquid, hence refractive index of liquid must be same as that of lens.
∴ Refractive index of liquid = 1.45.
Class 12 Physics Chapter 9 Ray Optics and Optical Instruments Session 2024-2025.
A glass lens of refractive index 1.45 disappears when immersed in a liquid. What is the value of refractive index of the liquid?
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The refractive index of the liquid is 1.45. When the glass lens disappears in the liquid, it indicates that the refractive indices of both the lens and the liquid are the same, causing no refraction at the interface.
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