Water rises to a height `h` in a capillary tube of cross-sectional area A. the height to which water will rise in a capillary tube of cross-sectional
Water rises to a height `h` in a capillary tube of cross-sectional area A. the height to which water will rise in a capillary tube of cross-sectional area `4A` will be
A. h
B. h/2
C. h/4
D. 4h
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Correct Answer - B
`h=(2Scostheta)/(rpg**)`
Cross-sectional area inceases 4 times, which means radius gets doubled. Therefore,
`h=(2S)/(2(rpg))=h/2`
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