1.

The focal lengths of a lens are in the ratio 8:3 when it is immersed in two different liquids of refractive indices 1.6 and 1.2 respectively. The refractive index of the material of the lens is

Answer»

The focal lengths of a lens are in the ratio 8:3 when it is immersed in two different liquids of refractive indices 1.6 and 1.2 respectively. The refractive index of the material of the lens is



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