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A long wire of negligible thickness and...

A long wire of negligible thickness and mass per unit length `lambda ` is floating in a liquid such that the top surface of liquid dips by a distance 'y' If the lendth of base of vessel is 2a , find surface tension of the liquid `( y gt gt a)`

Text Solution

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` l (2T cos theta ) = lambda l g`
`T = (lambda g)/(2 cos theta ) `
` rArr T = (lambdag(a^(2)+y^(2))^(1//2))/(2y) ~~ (lambda ga )/(2y)`
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