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EAMCET Medical EAMCET Medical Solved Paper-1999

  • question_answer
    When a capillary tube is lowered into water, the mass of water, raised in the tube, above the outside water level is 5 g. If the radius of the tube is doubled, the mass of water that rises in the capillary tube, above the outside water level is:

    A)  1.25 g                                  

    B)  5 g

    C)  10 g                                      

    D)  20 g

    Correct Answer: C

    Solution :

                     Since, mass of water \[\propto \]radius of capillary tube \[m\propto r\] \[\frac{{{m}_{2}}}{{{m}_{1}}}=\frac{{{r}_{2}}}{{{r}_{1}}}\] \[{{m}_{2}}=\frac{{{r}_{2}}}{{{r}_{1}}}\times {{m}_{1}}\] \[=\frac{2r}{r}\times 5\] \[=10\,g\]


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