1.

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 beA. hB. h/2C. h/4D. 4h

Answer» 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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