MHT CET 2026 Physics question
A metal wire of length 'L' and density 'd' floats horizontally on the free surface of water. The maximum radius of the wire does not sink in water is [T = surface tension of water , g = gravitational acceleration]
Answer: (B)
Solution
The wire floats because the surface tension force on both of its sides (total length of contact line, acting vertically at maximum) balances its weight. At the limiting condition: . Cancelling : $ =
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