A hollow metal sphere is found to float ...

A hollow metal sphere is found to float in water with the highest point just touching the free surface of water. If `d` is the density of the metal in cgs units, the fraction that represents the volume of the hollow in terms of the volume of the sphere is

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A hollow metal sphere is found to float in water with the highest point just touching the free surface of water. If `d` is the density of the metal in cgs units, the fraction that represents the volume of the hollow in terms of the volume of the sphere is

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