The image of an object placed in air formed by a convex refracting surface is at a distance of 1...

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The image of an object placed in air formed by a convex refracting surface is at a distance of 10 behind the surface.
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The image is real and is at \( \frac{2^{\text {rd }}}{3} \) of the distance of the object from the surface. The wavelength of light inside the surface is \( \frac{2}{3} \) times the wavelength in air. The radius of the curved zsurface is \( \frac{x}{13} \mathrm{~m} \). The value of \( x^{\prime} \) is JEE Main-202I (March)! Physis Wallah
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