what happens in the focal length of convex lens when it is kept in kerosene
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the focal length of the convex lens will increase as kerosene is denser
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Firstly i assume that the lens material is glass! Always remember that “ if the refracted index of immersing liquid is greater than the refracting index of lens then lens nature get reversed” i.e convex lens behave like concave lens and vice-versa.
Similarly, “ if the refracted index of immersing liquid is less than the refracting index of lens then the nature of lens remains same”.
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