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A small air bubble O (as shown in figure...

A small air bubble O (as shown in figure) is formed inside the solid glass sphere of radius 10 cm. The refractive index of glass `mu = (3)/(2)`. The position of air at distance 5 cm from centre. If one half of sphere is polished. Then find the distance between images seen by observer on the left side of sphere. Assume `mu = 1.5`.

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