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A tube of insufficient length is immerse...

A tube of insufficient length is immersed in water (surface tension`=0.7N//m`) with 1 cm of it Given, radius of tube`=1mm`.

Text Solution

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The correct Answer is:
A, D
`h=(2T)/(Rrhog) (R=`radius of meniscus at the top)
`:. R=(2T)/(h rho g)=(2xx0.07)/((10^(-2))(10^(3))(10))`
`=1.4 xx 10^(-3) m`
`= 1.4 mm`
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