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 dyne/cm and 50 dyne/cm respectively. Ratio of heights of liquids in the two tubes `(h_(1))/(h_(2))` isA. `(10)/(9)`B. `(10)/(3)`C. `(10)/(3)`D. `(9)/(10)`

Two capillary tubes of same diameter are put vertically one each in tw

1.	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 dyne/cm and 50 dyne/cm respectively. Ratio of heights of liquids in the two tubes `(h_(1))/(h_(2))` isA. `(10)/(9)`B. `(10)/(3)`C. `(10)/(3)`D. `(9)/(10)`
Answer» Correct Answer - D `h = (2T cos theta)/(rdg)` `:. (h_(1))/(h_(2)) = (T_(1))/(T_(2)) xx (d_(2))/(d_(1))` `= (60)/(50) xx (0.6)/(0.8) = (9)/(10)`

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