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Focal length of a convex lens of refractive index1.5 is 2 cmFocal length of the lens when immersed in aliquid of refractive index of 1.25 will be [1988]

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Focal length of a convex lens of refractive index1.5 is 2 cmFocal length of the lens when immersed in aliquid of refractive index of 1.25 will be [1988]






 
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