Two capillary tubes of same diameter are put vertically one each in two liquids whose relative densities are 0.8 and 0.6 and surface tensions are 60 and 50 dyne/cm respectively Ratio of heights of liquids in the two tubes h1h2 is
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a
109
b
310
c
103
d
910
answer is D.
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Detailed Solution
Ascent formula h=2Tcosθrdg⇒h1h2=T1T2×d2d1 (r,θ and g are constants )=6050×0.60.8=910