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
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a
h
b
h/2
c
h/4
d
4h
answer is B.
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Detailed Solution
h=2ScosθrρgCross-sectional area increases four times, which means radius gets doubled So, h'=2Scosθ2(rρg)=h2