ntA convex lens made up of glass of refractive index 1.5 is dipped , in turn , inn nti) a medium of refractive index 1.65n ntii) a medium of of refractive index 1.33n nt a)will it behave as refracting lens in the 2 cases? Explainn nt b)How will its focal length change in the 2 media?n

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