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The difference in water levels in the t...

The difference in water levels in the two communicating capillary tubes of different diameter d = 1 mm and d = `1.5` mm is `K xx 2.38` .Surface tension of water = `0.07 ` N/m and angle of contact between glass and water is `0^(@)` .Find the value of K .

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` 2T cos theta (1/(r_(1))- 1/(r_(2))) - rho gh `
`K = 2 `
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