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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 |
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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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