A hollow sphere has a small hole in it. On lowering the sphere in a tank of water, it is observe... VIDEO
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 \( 40 \mathrm{~cm} \) below the surface. Surface tension of water is \( 7 \times 10^{-2} \mathrm{~N} / \mathrm{m} \). The diameter of the hole ishttps://bit.ly/YTAI_PWAP https://www.pw.live
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