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

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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
11
Oct
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 [...]
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Tags: 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 ,