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Sahay Sir > Question Answers > Cengage JEE Mains Physics by B.M Sharma > Chapter 12 - Fluid Mechanics, Surface Tension and Viscosity > A hollow sphere has a small hole in it. On lowering the sphere in a tank of water, it is observed that water enters into the hollow sphere at a depth of 40 cm below the surface. Surface tension of water is 7×10^−2 N/m. The diameter of the hole is

A hollow sphere has a small hole in it. On lowering the sphere in a tank of water, it is observed that water enters into the hollow sphere at a depth of 40 cm below the surface. Surface tension of water is 7×10^−2 N/m. The diameter of the hole is

A hollow sphere has a small hole in it. On lowering the sphere in a tank of water it is observed that water enters into the hollow sphere at a depth of 40 cm below the surface. Surface tension of water is 7×10^−2 N/m. The diameter of the hole is